Page 8 / IM 742
Operating Limits
➀ At ARI flow rate.
➁ Maximum and minimum values may not be combined. If one
value is at maximum or minimum, the other two conditions may
not exceed the normal condition for standard units. Extended
range units may combine any two maximum or minimum con-
ditions, but not more than two, with all other conditions being
normal conditions.
This equipment is designed for indoor installation only.
Sheltered locations such as attics, garages, etc., gener
-
ally will not provide sufficient protection against extremes in
Environment
Standard Range units CCH & CRH
Units are designed to start-up in an ambient of 50°F (10°C),
with entering air at 50°F (10°C), with entering water at 70°F
(21°C), with both air and water flow rates used in the ISO
13256-1 rating test, for initial start-up in winter.
Note: This is not a normal or continuous operating condi-
tion. It is assumed that such a start-up is for the purpose of
bringing the building space up to occupancy temperature.
Geothermal Range units CCW & CRW
Geothermal heat pump units are designed to start-up in an
ambient of 40°F (5°C), with entering air at 40°F (5°C), with
entering water at 25°F (-4°C), with both air and water at flow
rates used in the ISO 13256-1 rating test, for initial start-up
in winter.
Note: This is not a normal or continuous operating condi-
tion. It is assumed that such a start-up is for the purpose of
bringing the building space up to occupancy temperature.
temperature and/or humidity, and equipment performance,
reliability, and service life may be adversely affected.
Air limits Water limits
Additional Information For Initial Start-up Only
Operating voltages
115/60/1 . . . . . . . . . . . . . . . . 104 volts min.; 127 volts max.
208-230/60/1 . . . . . . . . . . . . 197 volts min.; 253 volts max.
265/60/1 . . . . . . . . . . . . . . . . 238 volts min.; 292 volts max.
230/50/1 . . . . . . . . . . . . . . . . 197 volts min.; 253 volts max.
460/60/3 . . . . . . . . . . . . . . . . 414 volts min.; 506 volts max.
380/50/3 . . . . . . . . . . . . . . . . 342 volts min.; 418 volts max.
575/60/3 . . . . . . . . . . . . . . . . 515 volts min.; 632 volts max.
Note: Voltages listed are to show voltage range. However,
units operating with overvoltage and undervoltage for
extended periods of time will experience premature com-
ponent failure. Three phase system unbalance should not
exceed 2%.
Geothermal Range
Standard Range Units
Units
Cooling Heating Cooling Heating
Min. Ambient Air 50˚F/10˚C 50˚F/10˚C 40˚F/5˚C 40˚F/5˚C
Normal Ambient Air 80˚F/27˚C 70˚F/21˚C 80˚F/27˚C 70˚F/21˚C
Max. Ambient Air 100˚F/38˚C 85˚F/29˚C 100˚F/38˚C 85˚F/29˚C
Min. Ent. Air ➀➁ 50˚F/10˚C 50˚F/10˚C 50˚F/10˚C 40˚F/5˚C
Normal Ent. Air, 80/67˚F 70˚F 80/67˚F 70˚F
dw/wb 27/19˚C 21˚C 27/19˚C 21˚C
Max. Ent. Air 100/83˚F 80˚F 100/83˚F 80˚C
db/wb ➀➁ 38/28˚C 27˚C 38/28˚C 27˚C
Geothermal Range
Standard Range Units
Units
Cooling Heating Cooling Heating
Min. Ent. Water ➀➁ 55°F/13°C 55°F/13°C 30°F/-1°C 20°F/-6°C
Normal Ent. Water 85°F/29˚C 70˚F/21°C 77°F/25˚C 40˚F/5°C
Max. Ent. Water ➀➁ 110°F/43˚C 90°F/32°C 110°F/43˚C 90°F/32°C
To Next Page
Loading...
Need help?
General