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6.
I
NSTALLATION OF THE INDOOR UNIT
6.1. Selecting an installation location
WARNING
Be sure to provide for adequate measures in order to
prevent that the unit be used as a shelter by small animals.
CAUTION
■
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 and
clear.
■
The equipment is not intended for use in a potentially
explosive atmosphere.
■
Be sure that sufficient precautions are taken, in
accordance with the applicable legislation, in case of
refrigerant leakage.
■
When installing the unit in a small room, take
measures
in
concentration from exceeding allowable safety limits
in the event of a refrigerant leak.
Excessive refrigerant concentrations in a closed room
can lead to oxygen deficiency.
■
Where flammable gases may leak, where carbon fibre
or ignitable dust is suspended in the air or where
volatile flammables, such as thinner or gasoline, are
handled.
Such gases may cause a fire.
The unit is to be wall mounted in an indoor location that meets the
following requirements:
■
The installation location is frost-free.
■
The space around the unit is adequate for servicing.
figure
2).
■
The space around the unit allows for sufficient air circulation.
■
There is a provision for condensate drain (only for EKHBX
models with drain pan kit EKHBDP) and pressure relief valve
blow-off.
■
The installation surface is a flat and vertical non-combustible
wall, capable of supporting the operation weight of the unit (see
"12. Technical specifications" on page
■
All piping lengths and distances have been taken into
consideration.
Requirement
Maximum allowable refrigerant piping length between
outdoor unit and indoor unit
Minimum required refrigerant piping length between
outdoor unit and indoor unit
Maximum allowable height difference between
outdoor unit and indoor unit
Maximum allowable distance between the 3-way
valve and the indoor unit (only for installations with
domestic hot water tank).
Maximum allowable distance between the domestic
hot water tank and the indoor unit (only for
installations with domestic hot water tank). The
thermistor cable supplied with the domestic hot water
tank is 12 m in length.
■
During normal operation the hydrobox unit will produce sound
which could be observed as noise. The sound origin can be
water pump operation and/or contactor activation. Therefore it is
advisable to install the hydrobox unit on a firm wall and not in nor
close to a sound sensitive environment (e.g. bedroom).
■
Do not install the unit in places with high humidity (e.g.
bathroom).
Installation manual
13
order
to
keep
the
refrigerant
50).
Value
30 m
3 m
20 m
3 m
10 m
■
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.
■
Take care that in the event of a water leak, water can not cause
any damage to the installation space and surroundings.
■
Do not place any objects or equipment on top of the unit.
■
Install the power wire at least 1 meter away from televisions or
radios to prevent image interference or noise.
(Depending on the radio waves, a distance of 1 meter may not
be sufficient to eliminate the noise.)
■
Do not install the unit in places such as the following:
■ Where there is mist of mineral oil, oil spray or vapour.
Plastic parts may deteriorate, and cause them to fall out or
water to leak.
■ Where corrosive gas, such as sulphurous acid gas, is
produced.
Corrosion of copper pipes or soldered parts may cause the
refrigerant to leak.
■ Where there is machinery which emits electromagnetic
waves.
Electromagnetic waves may disturb the control system, and
cause malfunction of the equipment.
■ Where the air contains high levels of salt.
■ Where voltage fluctuates a lot, such as that in factories.
■ In vehicles or vessels.
■ Where acidic or alkaline vapour is present.
INFORMATION
If the installation is equipped with a domestic hot water
tank (optional), please refer to the domestic hot water tank
installation manual.
6.2. Dimensions and service space
(See
Unit of measurement: mm
Dimensions of the unit, see
1 Flexible drain hose
2 Water outlet connection
3 Water inlet connection
4 Refrigerant liquid connection
5 Refrigerant gas connection
FBSP Female British Standard Pipe
MBSP Male British Standard Pipe
Required service space, see
figure
3.
figure
2.
EKHBH/X008BB
Indoor unit for air to water heat pump system
4PW62570-1A – 01.2011
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