Specifications

Operating Limits
Air limits °C (Sl units)
Cooling Heating
Min. Ambient Air
19.4 21
Normal Ambient Air
26.7 21
Max. Ambient Air
35 26.7
Min. Entering Air (1)&(2)
19.4 21
Normal Entering Air, DB/WB
26.7/19.4 21
Max. Entering Air, DB/WB
(1)&(2)
35/21.7 26.7
Note:
1. At ARI flow rate
2. Max and min values may not be
combined. If one value is at max or
min, the other two conditions may
not exceed the normal condition.
Water enthalpy °C (Sl units)
Cooling Heating
Min. Entering Water (1)&(2)
13 10
Normal Entering Water
29.4 21
Max. Entering Water (1)&(2)
40 32
Environment
This equipment is designed for indoor installation only. Sheltered locations such as attics, garages, etc.,
generally will not provide sufficient protection against extremes in temperature and/or humidity, and
equipment performance, reliability, and service life may be adversely affected.
Power supply
A voltage variation of ±10% of nameplate utilization voltage is acceptable. Three-phase system unbalance
shall not exceed 2%.
Operating voltages
220-240V~/50Hz ---------------------------------------------------------------------------- 198V min., 264V max.
380-415V/3N/50Hz ---------------------------------------------------------------------------- 342V min., 456V max.
Additional information (initial start-up only)
Standard conditions are guaranteed to start and operate in an ambient temperature of 5°C, with entering air
at 5°C, with entering water at 21°C, with both air and water at the flow rates used in the ARI Standard 320-
86 rating test, for initial start-up in winter.
Note: This is not a normal or continuous operating condition. It is assumed that such a start-up is for the
purpose of bringing the building space up to occupancy temperature.
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