Operating Limits - Johnson Controls RJ H Series Installation Operation & Maintenance

Operating Limits

Operating Limits
Air Limits
Min. Ambient Air
Rated Ambient Air
Max. Ambient Air
Min. Entering Air
Rated Entering Air db/wb
Max. Entering Air db/wb
Water Limits
Min. Entering Water
Normal Entering Water
Max. Entering Water
Notes:
Minimum/maximum limits are only for start-up conditions, and are meant for bringing the space up to occupancy
temperature. Units are not designed to operate at the minimum/maximum conditions on a regular basis. The
operating limits are dependant upon three primary factors: 1) water temperature, 2) return air temperature, and 3)
ambient temperature. When any of the factors are at the minimum or maximum levels, the other two factors must be
at the normal level for proper and reliable unit operation.
Cooling
(°F) (°C)
45 7.2
80 26.7
100 37.8
50 10.0
80.6/66.2 27/19
110/83 43/28.3
30 -1.1
50-110 10-43.3
120 48.9
Heating
(°F) (°C)
45 7.2
70 21.1
85 29.4
40 4.4
68 20.0
80 26.7
20 -6.7
30-70 -1.1
90 32.2
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RJ SERIES INSTALLATION MANUAL