ICE AIR ccHPWH Series, Installation And Maintenance Manual

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If any of the below conditions are present, the compressor antifreeze mode will be enabled:
1.
Water pump antifreeze mode is operating and the operating time ≥ 3min
2. 41F (5
℃
)
＜
Ambient temp ≤ 46.5F (8
℃
) and water inlet temp ≤ 43F (6
℃
)
；
3. 37.5F (3
℃
)
＜
Ambient
temp ≤ 41F (5
℃
) and water inlet temp ≤ 44.5F (7
℃
)
；
4.
Ambient temp ≤ 37.5F (3
℃
) and water inlet temp ≤ 46.5F (8
℃
)
；
5.
Water inlet temp ≤ 39F (4
℃
)
3. Snow removal function
When the unit has not been started for a long time. and the ambient temperature is lower than the limit
value of the snow removal function, the snow removal function will be activated. At this time, the unit's fan
motor will automatically start. This function can be turned on by the remote control to prevent the snow
from blocking the fan and blades in severe snowstorms.
The detail c onditions:
Enter snow removal function
a) No command of turning on.
b) Snow removal function is set to be enabled by the controller.
c) Ambient temperature < Default temperature of snow removal function
d) The idle time of fan > Default time of snow removal function
Exit snow removal function
a) Command of turning on.
b) Fan running time > Default running time of snow removal function.
c) Ambient temperature sensor is failed
d) Fan is failed
4. Timer
The heat pump unit can set to operate according to a predefined schedule. The day, time, and temperature set-
point at each interval can be programmed into the controller.
5. Touchpad controller
The Touchpad controller has a LCD screen; the main functions of the controller are: Enable/disable, unit mode,
target water tank temperature setting, timer function setting, current and history fault query, system parameter
query and modification
(See the installation manual for details)
6. Multiple installations
For multiple water heater installations, there are three methods of controlling the system
A) Ice Air Control Board (controls up to 16 units)
B) Ice Air Sequencing Software (requires computer to run software and RS485 communication wire;
controls up to 16 units)
C) 3
rd
Party Control Board
See the Sequence of Operation description for details on these control features