Installation manual
9
ERHQ011~W1 + ERLQ011~W1
Outdoor unit for air to water heat pump
4PW57794-1 – 08.2010
5.
S
ELECTING
INSTALLATION
SITE
5.1.
General
■
Select an installation site where the following conditions are
satisfied and that meets with your customer's approval.
-
Places which are well-ventilated.
-
Places where the unit does not bother next-door neighbours.
-
Safe places which can withstand the unit's weight and
vibration and where the unit can be installed level.
-
Places where there is no possibility of flammable gas or
product leak.
-
The equipment is not intended for use in a potentially
explosive atmosphere.
-
Places where servicing space can be well ensured.
-
Places where the indoor and outdoor units' piping and wiring
lengths come within the allowable ranges.
-
Places where water leaking from the unit cannot cause
damage to the location (e.g. in case of a blocked drain pipe).
-
Places where the rain can be avoided as much as possible.
-
Do not install the unit in places often used as work place.
In case of construction works (e.g. grinding works) where a
lot of dust is created, the unit must be covered.
-
Do not place any objects or equipment on top of the unit (top
plate).
-
Do not climb, sit or stand on top of the unit,
-
Be sure that sufficient precautions are taken, in accordance
with applicable legislation, in case of refrigerant leakage.
■
When installing the unit in a place exposed to strong wind, pay
special attention to the following.
Strong winds of 5 m/sec or more blowing against the outdoor
unit's air outlet causes short circuit (suction of discharge air),
and this may have the following consequences:
-
Deterioration of the operational capacity.
-
Frequent frost acceleration in heating operation.
-
Disruption of operation due to rise of high pressure.
-
When a strong wind blows continuously on the face of the
unit, the fan can start rotating very fast until it breaks.
Refer to the figures for installation of this unit in a place where
the wind direction can be foreseen.
■
Install a baffle plate on the air suction side of the outdoor unit
and set the outlet side at a right angle to the direction of the
wind:
■
Prepare a water drainage channel around the foundation, to
drain waste water from around the unit.
■
If the water drainage of the unit is not easy, please build up the
unit on a foundation of concrete blocks, etc. (the height of the
foundation should be maximum 150 mm).
■
If you install the unit on a frame, please install a waterproof plate
within 150 mm of the underside of the unit in order to prevent the
invasion of water from the lower direction.
■
When installing the unit in a place frequently exposed to snow,
pay special attention to elevate the foundation as high as
possible.
■
If you install the unit on a building frame,
please install a waterproof plate (field
supply)(within 150 mm of the underside of
the unit) or use a drain kit (refer to
combination table in
) in order to avoid the drainwater
dripping. (See figure).
■
Make sure that the unit is installed level.
CAUTION
■
Make sure to provide for adequate measures in order
to prevent that the outdoor unit be used as a shelter
by small animals.
■
Small animals making contact with electrical parts can
cause malfunctions, smoke or fire. Please instruct the
customer to keep the area around the unit clean.
1
Baffle plate
2
Strong wind
3
Discharge air
1
2
3
2
