Specifications

GT-PCS Split Units - 60Hz Puron
®
Created: 29 Aug., 2013
48
Unit Starting and Operating Conditions
Commissioning Limits
Consult Tables 13c - 13d for the particular model. Starting conditions vary depending upon model and are based upon the
following notes:
Notes:
1. Commissioning limits in Tables 13c - 13d are not normal or continuous operating conditions. Minimum/maximum limits
are start-up conditions to bring the building space up to occupancy temperatures. Units are not designed to operate
under these conditions on a regular basis.
2. Voltage utilization range complies with AHRI Standard 110.
Table 13a: Building Operating Limits - 50YGS
Table 13b: Building Operating Limits - 50YGP
Operating Limits
Environment – Units are designed for indoor installation only. Never install in areas subject to freezing or where humidity levels
could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air). Power Supply – A voltage
variation of +/– 10% of nameplate utilization voltage is acceptable.
Determination of operating limits is dependent primarily upon three factors: 1) return air temperature. 2) water temperature,
and 3) ambient temperature. When any one of these factors is at minimum or maximum levels, the other two factors should
be at normal levels to insure proper unit operation. Extreme variations in temperature and humidity and/or corrosive water or
air will adversely affect unit performance, reliability, and service life. Consult Tables 13a - 13b for operating limits.
Table 13c: Building Commissioning Limits - 50YGS
Table 13d: Building Commissioning Limits - 50YGP
Cooling Heating
Air Limits
Min. ambient air, DB 45ºF [7ºC] 39ºF [4ºC]
Rated ambient air, DB 80.6ºF [27ºC] 68ºF [20ºC]
Max. ambient air, DB 130ºF [54ºC] 85ºF [29ºC]
Min. entering air, DB/WB 65/45ºF [18/7ºC] 50ºF [10ºC]
Rated entering air, DB/WB 80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
Max. entering air, DB/WB 100/75ºF [38/24ºC] 80ºF [27ºC]
Water Limits
Min. entering water 30ºF [-1ºC] 20ºF [-6.7ºC]
Normal entering water 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
Max. entering water 120ºF [49ºC] 90ºF [32ºC]
TES
Operating Limits
Normal Water Flow
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
Created: 2 Aug., 2012B
50YGS
Cooling Heating
Air Limits
Min. ambient air, DB -10ºF [-23ºC] -10ºF [-23ºC]
Rated ambient air, DB 80.6ºF [27ºC] 68ºF [20ºC]
Max. ambient air, DB 130ºF [54ºC] 85ºF [29ºC]
Min. entering air, DB/WB 65/45ºF [18/7ºC] 50ºF [10ºC]
Rated entering air, DB/WB 80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
Max. entering air, DB/WB 100/75ºF [38/24ºC] 80ºF [27ºC]
Water Limits
Min. entering water 30ºF [-1ºC] 20ºF [-6.7ºC]
Normal entering water 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
Max. entering water 120ºF [49ºC] 90ºF [32ºC]
TEP
Operating Limits
Normal Water Flow
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
Created: 2 Aug., 2012B
50YGP
Cooling Heating
Air Limits
Min. ambient air, DB 45ºF [7ºC] 39ºF [4ºC]
Rated ambient air, DB 80.6ºF [27ºC] 68ºF [20ºC]
Max. ambient air, DB 130ºF [54ºC] 85ºF [29ºC]
Min. entering air, DB/WB 60ºF [16ºC] 40ºF [4.5ºC]
Rated entering air, DB/WB 80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
Max. entering air, DB/WB 110/83ºF [43/28ºC] 80ºF [27ºC]
Water Limits
Min. entering water 30ºF [-1ºC] 20ºF [-6.7ºC]
Normal entering water 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
Max. entering water 120ºF [49ºC] 90ºF [32ºC]
TES
Commissioning Limits
Normal Water Flow
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
Created: 2 Aug., 2012B
50YGS
Cooling Heating
Air Limits
Min. ambient air, DB -10ºF [-23ºC] -10ºF [-23ºC]
Rated ambient air, DB 80.6ºF [27ºC] 68ºF [20ºC]
Max. ambient air, DB 130ºF [54ºC] 85ºF [29ºC]
Min. entering air, DB/WB 60ºF [16ºC] 40ºF [4.4ºC]
Rated entering air, DB/WB 80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
Max. entering air, DB/WB 110/83ºF [43/28ºC] 80ºF [27ºC]
Water Limits
Min. entering water 30ºF [-1ºC] 20ºF [-6.7ºC]
Normal entering water 50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
Max. entering water 120ºF [49ºC] 90ºF [32ºC]
TEP
Commissioning Limits
Normal Water Flow
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
Created: 2 Aug., 2012B
50YGP