OPERATING & MAINTENANCE MANUAL –
VERTICAL STACK WATER SOURCE HEAT PUMP (VWSHP)
4
THERMOSTATS
ICE AIR electronic type thermostats have the following features:
a) Single Stage Standard Manual Changeover
This thermostat is a single-stage, vertical mount,
manual changeover with a HEAT-OFF-COOL
system switch and a fan ON-AUTO switch. The
thermostat has a mechanical temperature
indicator and set point indication. The thermostat
only requires 4 wires for connection. Mercury
bulb thermostats are not acceptable.
b) Single Stage Digital Auto or Manual Changeover
This thermostat is a single-stage, digital, auto
or manual changeover with a HEAT-OFF-COOL-
AUTO system switch and a fan ON-AUTO switch.
The thermostat has an LCD display with
temperature and set-point(s) in ºF or ºC. The
Thermostat provides permanent memory of
set-point(s) without batteries. A fault LED is
provided to display specific fault condition. The
thermostat provides temperature display offset
for custom applications.
ELECTRICAL DATA
•
Ensure that available power is the same voltage and phase as
indicated on the unit serial plate. Line and voltage wiring must
be executed in accordance with local codes or to the National
Electrical Code or in Canada to Canadian Electrical Standards.
•
Apply correct line voltage to unit. Disconnect switch near unit
is required by code. Power to unit must be sized correctly and
have dual element class RK5 fuses or HACR circuit breaker for
branch circuit overcurrent protection. Consult the unit serial
plate for current ratings.
•
All 208/230V units are wired for 208V operation unless other-
wise specified.
The following physical conditions must be maintained for
proper unit operation:
Unobstructed air flow into and out of the unit room
enclosure (cabinet).
Therefore:
- Do not place any object in front of the discharge grille
(at the cabinet top)
- Do not place plants, fabrics or objects in front of the air
return access door
- Have the unit filter properly cleaned and serviced to prevent
air blockage from dirt and dust within the filter media
•
Proper installation and operating environment must be
maintained.
Therefore:
- Do not operate the unit in corrosive environments such
as chemical plants, refineries or salt spray areas.
- Operate only with proper electrical service and protective
circuit breakers or fuses in place.
- Operate only with all components in place and properly
installed.
- In areas of high concentrations of dirt, dust, pet dander
or pollutants, clean the filter often (at least monthly).
- Do not clean the unit with any solvents or cleaning
solutions that may damage the equipment (see
maintenance Instructions for proper cleaning protocols).
- Understand and follow the unit operating instructions
below before using your WSHP equipment.
CONTROLS
ICE AIR Vertical Stack WSHP units are controlled by a state-of-
the-art electronic package that is comprised of a digital control
pad and internal Power Control Board (PCB).
Control Pad
