5
This unit can be located at ground oor level or on at roofs.
At ground oor level, the unit must be on a solid, level foun-
dation that will not shift or settle. To reduce the possibility
of sound transmission, the foundation slab should not be in
contact with or be an integral part of the building foundation.
Care should be taken to ensure the unit is installed away
from noise sensitive locations such as bedrooms, windows
and outdoor living areas. Ensure the foundation is sufcient
to support the unit. A concrete slab raised above ground level
provides a suitable base.
cold clImate heat pump operatIon locatIon
When installing the unit in a place frequently exposed to
snow, pay special attention to the following:
• Install the outdoor unit on a stand (eld supply), so that
the bottom frame is more than 20 in. (500 mm) higher
than the expected snow fall to prevent it from being
covered by snow.
• Attach a snow hood (eld supply) and a snow vizor (eld
supply).
• Avoid installation at the place where a snowdrift is
generated.
• Further, perform the following countermeasures, since
there is risk that the drain water produced at the defrost
operation freezes.
• An optional drain pan heater is available when the unit is
installed in a climate where the drain may freeze.
• It is highly recommended to use drain pan heater in areas
where the outside air temperature drops below 32°F
(0°C) for more than 12 hours continuously.
• In high humidity areas or heavy snow areas, it is
recommended to attach a drain pan heater to prevent ice
build-up from the bottom frame.
• Do not use a concentrated drain pipe. (If so there is a risk
of freezing.) Only utilize the existing holes for drainage.
• In high humidity areas or heavy snow areas, it is strongly
recommended to install the unit high enough off of the
ground to prevent ice built-up from the ground or to
prevent burying in snow.
• Remove the rear inlet grille to prevent snow from
accumulating on the rear ns.
• In case of long line set, refrigerant may be accumulated
inside line-set pipe, it is strongly recommended to set
heat pump lockout. It should be 15°F or above.
• Follow Heat pump lockout setting (Refer page 49 in
case of CTK04) also.
CAUTION
when operatIng the heat pump In a
low outdoor amBIent temperature,
Be Sure to follow the InStructIonS
deScrIBed Below.
•to preVent expoSure to wInd, InStall
the outdoor unIt wIth ItS SuctIon
SIde facIng the wall.
•neVer InStall the outdoor unIt at a
SIte where the SuctIon SIde may Be
expoSed dIrectly to wInd.
•to preVent expoSure to wInd, It IS
recommended to InStall a Baffle
plate on the aIr dIScharge SIde of
the outdoor unIt.
•In heaVy Snowfall areaS, Select an
InStallatIon SIte where the Snow
wIll not affect the unIt.
• Construct a large
canopy.
• Construct a pedestal.
Install the unit high
enough off the ground
to prevent burying in
snow.
rooftop InStallatIonS
If it is necessary to install this unit on a roof structure, ensure
the roof structure can support the weight and that proper
consideration is given to the weather-tight integrity of the roof.
Since the unit can vibrate during operation, sound vibration
transmission should be considered when installing the unit.
Vibration absorbing pads or springs can be installed between
the heat pump unit legs or frame and the roof mounting as-
sembly to reduce noise vibration.
electrIcal noISe
The unit should be well grounded so that potential effects of
electrical noise from the inverter to surrounding equipment
can be minimized.
When selecting an installation location, keep sufcient dis-
tance from the heat pump unit and wiring to radios, personal
computers, stereos, uorescent lamp, etc., as shown in the
following gure.
Radio, TV
60” or more
60” or more
unit: inch
Circuit
Breaker
High voltage
power cable
To Indoor Unit and
Thermostat
Placement to Minimize Electronic Noise
To Next Page
Loading...
