Unit Commissioning And Operating Conditions - Carrier 50YFV Installation, Operation And Maintenance Instructions

R e s i d e n t i a l D i g i t a l P a c k a g e d U n i t s G T- P B S e r i e s - 6 0 H z P u r o n
R e v : 4 A p r i l , 1 4

Unit Commissioning and Operating Conditions

Operating Limits
Environment – Units are designed for indoor installation only. Never install units in areas subject to freezing or where humidity levels
could cause cabinet condensation (such as unconditioned spaces subject to 100% outside air).
Power Supply – Voltage utilization shall comply with AHRI standard 110.
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 Table 9a for operating limits.
Table 11a: Building Operating Limits
Operating Limits
Air Limits
Min. ambient air, DB
Rated ambient air, DB
Max. ambient air, DB
Min. entering air, DB/WB
Rated entering air, DB/WB
Max. entering air, DB/WB
Water Limits
Min. entering water
Normal entering water
Max. entering water
Normal Water Flow
Commissioning Conditions
Consult Table 11b for commissioning conditions. Starting conditions vary depending upon model and are based upon the
following notes:
Notes:
1. Conditions in Table 11b 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 complies with AHRI Standard 110.
Table 11b: Building Commissioning Limits
Commissioning Limits
Air Limits
Min. ambient air, DB
Rated ambient air, DB
Max. ambient air, DB
Min. entering air, DB/WB
Rated entering air, DB/WB
Max. entering air, DB/WB
Water Limits
Min. entering water
Normal entering water
Max. entering water
Normal Water Flow
38
Unit
Cooling Heating
45ºF [7ºC] 39ºF [4ºC]
80.6ºF [27ºC] 68ºF [20ºC]
130ºF [54ºC] 85ºF [29ºC]
65/45ºF [18/7ºC] 50ºF [10ºC]
70/50ºF Reheat
80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
100/75ºF [38/24ºC] 80ºF [27ºC]
20ºF [-6.7ºC] 20ºF [-6.7ºC]
50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
120ºF [49ºC] 120ºF [49ºC]
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
Unit
Cooling Heating
45ºF [7ºC] 39ºF [4ºC]
80.6ºF [27ºC] 68ºF [20ºC]
130ºF [54ºC] 85ºF [29ºC]
60ºF [16ºC] 40ºF [4.5ºC]
80.6/66.2ºF [27/19ºC] 68ºF [20ºC]
110/83ºF [43/28ºC] 80ºF [27ºC]
20ºF [-6.7ºC] 20ºF [-6.7ºC]
50-110ºF [10-43ºC] 30-70ºF [-1 to 21ºC]
120ºF [49ºC] 120ºF [49ºC]
1.5 to 3.0 gpm / ton
[1.6 to 3.2 l/m per kW]
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