Common use of HVAC Clause in Contracts

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit when outdoor conditions are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulb. ii) Heating season minimum room temperature of 72 degrees Fahrenheit when outdoor conditions are 6 degrees Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., p.m. Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the Boston Suburban market, and Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 6.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i(1) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. ii(2) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., p.m. Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first class office buildings in the Central Suburban 128 Market, and Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 -79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the Boston Suburban market, and Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx wxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance shall comply with the Massachusetts Energy Code ASHRAE standard 62-1999 and shall not be less than the following: (i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit when outdoor conditions are 91 degrees Fahrenheit drybulb dry-bulb and 73 degrees Fahrenheit wetbulbwet-bulb. (ii) Heating season minimum room temperature of 72 70 degrees Fahrenheit when outdoor conditions are 6 degrees Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 12:00 p.m. on Saturdays, Saturdays (legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the Boston Suburban market, and Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73—79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68—75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted)) and, provided Tenant has made prior written request pertaining to each applicable Saturday, 8:00 a.m. to 1:00 p.m. each such Saturday. If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the East Cambridge/Xxxxxxx Square market, and Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1( l ) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require req uire during Normal the hours (the "Building Operating Hours (Hours") of 8:00 a.m. to 6:00 p.m., p.m . Monday through Friday, Friday and 8:00 9:00 a.m. to 1:00 p.m. p.m:­ on Saturdays, Saturdays (legal holidays in all cases excepted). Landlord and Tenant will cooperate with each other in good faith to operate the heating, ventilating and air conditioning systems on Saturdays only in those portions of the Premises that are actually occupied on such days. If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlordLandlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. within a reasonable amount of the business day time preceding the extra usage. For Tenant may request such servicesafter hours service on a zone-by-zone basis. Landlord shall charge Tenant for an amount equal to the sum of (x) the actual costs charged to Landlord by the utility company to provide such service and (y) a reasonable additional charge for depreciation of equipment, manpower and administrative fees, and Tenant shall pay the same to Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning for the Premises, but expressly excluding the any portion of the Premises used for laboratory use, as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 the hours of 6:00 a.m. to 6:00 p.m., 7:00 p.m. Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). Tenant hereby acknowledges and agrees that Tenant shall be responsible for providing heating, ventilating and air conditioning for the portion of the Premises used for laboratory use. If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable rentable floor area served, and a combined lighting and standard electrical load of 3.0 4 xxxxx per square foot of useable rentable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if writing. If within fifteen (15) days Tenant has not modified its use so as not to cause such overload, Landlord may, if needed, provide supplemental systems at Tenant's expense. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit 00X Xxxxxxxxxx when outdoor conditions are 91 degrees Fahrenheit 00X Xxxxxxxxxx drybulb and 73 degrees 74E Fahrenheit wetbulb. ii) Heating season minimum room temperature of 72 degrees Fahrenheit 00X Xxxxxxxxxx when outdoor conditions are 6 degrees 1E Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating (during any season season) outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost actually incurred by Landlord as reasonably calculated by Landlord's engineers, pro-rated if more than one tenant is requesting service.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 6.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal the hours (the “Building Operating Hours (Hours”) of 8:00 a.m. to 6:00 p.m., p.m. Monday through Friday, Friday and 8:00 9:00 a.m. to 1:00 p.m. on Saturdays, Saturdays (legal holidays in all cases excepted). Landlord and Tenant will cooperate with each other in good faith to operate the heating, ventilating and air conditioning systems on Saturdays only in those portions of the Premises that are actually occupied on such days. If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's Landlord’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. within a reasonable amount of the business day time preceding the extra usage. For Tenant may request such servicesafter hours service on a zone-by-zone basis. Landlord shall charge Tenant for an amount equal to the sum of (x) the actual costs charged to Landlord by the utility company to provide such service and (y) a reasonable additional charge for depreciation of equipment, manpower and administrative fees, and Tenant shall pay the same to Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit when outdoor conditions are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulb.. Exhibit 10.9 ii) Heating season minimum room temperature of 72 degrees Fahrenheit when outdoor conditions are 6 degrees Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (( 1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 6.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 a.m. 8:00a.m. to 6:00 p.m.6:00p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. 3:00p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and ai:id air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the honrs of 8:00 a.m. to 6:00 p.m., p.m. Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). If Tenant shall require air conditioning (during dnring the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursdnring any. other time period, Landlord shall use landlord's best efforts to furnish such snch services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra­ honrs usage at reasonable rates customary for first-class office buildings in the Class A Central 128 Area Market, except that there shall be no charge for such extra-honrs usage on Satiirdays between the honrs of 9:00 a.m. and 1:00 p.m. (legal holidays excepted), and Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.billing therefor. GSDOCS\1689479.11 5/25f2007 Exhibit C

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit when outdoor conditions are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulb. ii) Heating season minimum room temperature of 72 70 degrees Fahrenheit when outdoor conditions are 6 degrees Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 1.5 xxxxx per square foot of useable floor areaarea for lights and 5.5 xxxxx per square foot of useable floor area for power. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions temperatures of not in excess of 78 73-79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. ii) Heating season minimum room temperature of 72 68-75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 6.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulb.Fahrenheit B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m., Monday through Friday, (and upon request 8:00 a.m. to 1:00 p.m. on Saturdays, legal ) the following holidays in all cases excepted). : New Year’s Day President’s Day Memorial Day Independence Day Labor Day Thanksgiving Day Christmas Day If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150100) square feet of useable rentable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per 4 wattx xxx square foot of useable rentable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if writing. If within fifteen (15) days days, Tenant has not modified its use so as not to cause such overload, Landlord may, if as needed, at Tenant's option, provide supplementary systems at Tenant's expense. EXHIBIT D 88 Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees Fahrenheit and 50 percent relative humidity when outdoor conditions are 91 88 degrees Fahrenheit drybulb and 73 74 degrees Fahrenheit wetbulb. ii) Heating season minimum room temperature of 72 degrees Fahrenheit when outdoor conditions are 6 3 degrees Fahrenheit drybulb. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 7:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable rentable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx 4 watts per square foot of useable rentable floor area. In the event Tenant evenx Xxxant introduces into the Premises personnel or equipment which overloads the system's ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's expense, if writing. If within fifteen (15) days Tenant has not modified its use so as not to cause such overload, Landlord may, if needed, provide supplemental systems at Tenant's expense. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions of not in excess of 78 degrees 78E Fahrenheit when outdoor conditions are 91 degrees Fahrenheit drybulb 88E Fahrxxxxxx xxxxxxx and 73 degrees 74E Fahrenheit wetbulb. iixi) Heating season minimum room temperature of 72 degrees 72E Fahrenheit when outdoor conditions are 6 degrees Fahrenheit drybulb1E Fahrexxxxx xxxxxxx. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges may require during Normal Building Operating Hours (8:00 7:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, Friday (legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered Texxxx xelivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the Boston Suburban market, and Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: (i) Cooling season indoor conditions temperatures of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions temperatures are 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. (ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions temperatures are 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (the hours of 8:00 a.m. to 6:00 p.m., p.m. Monday through Friday, Friday (legal holidays in all cases excepted) and 8:00 during the hours of 9:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hoursother time period, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For Landlord shall charge Tenant for such servicesextra-hours usage at reasonable rates customary for first-class office buildings in the Boston Suburban market, and Tenant shall pay Landlord, as additional rentAdditional Rent, upon receipt of billing, a sum equal to the cost incurred by Landlordbilling therefor.

HVAC. A. Heating, ventilating and air conditioning equipment will be provided with sufficient capacity to accommodate a maximum population density of one (1) person per one hundred fifty (150) square feet of useable floor area served, and a combined lighting lightning and standard electrical load of 3.0 xxxxx per square foot of useable floor area. In the event Tenant introduces into the Premises personnel or equipment which overloads the system's ’s ability to adequately perform its proper functions, Landlord shall so notify Tenant in writing and supplementary system(s) may be required and arid installed by Landlord at Tenant's ’s expense, if within fifteen (15) days Tenant has not modified its use so as not to cause such overload. Operating criteria of the basic system are in accordance with the Massachusetts Energy Code and shall not be less than the following: i) Cooling season indoor conditions temperature of not in excess of 78 73 - 79 degrees Fahrenheit when outdoor conditions are temperature is 91 degrees Fahrenheit drybulb and 73 degrees Fahrenheit wetbulbambient. ii) Heating season minimum room temperature of 72 68 - 75 degrees Fahrenheit when outdoor conditions are temperature is 6 degrees Fahrenheit drybulbambient. B. Landlord shall provide heating, ventilating and air conditioning as normal seasonal charges changes may require during Normal Building Operating Hours (8:00 a.m. to 6:00 p.m.P.m., Monday through Friday, and 8:00 a.m. to 1:00 p.m. on Saturdays, legal holidays in all cases excepted). If Tenant shall require air conditioning (during the air conditioning season) or heating or ventilating during any season outside Normal Building Operating Hours, Landlord shall use landlord's ’s best efforts to furnish such services for the area or areas specified by written request of Tenant delivered to the Building Superintendent or the Landlord before 3:00 p.m. of the business day preceding the extra usage. For such services, Tenant shall pay Landlord, as additional rent, upon receipt of billing, a sum equal to the cost incurred by Landlord.