ERLQ006~008BBV39
Outdoor unit for air to water heat pump
4PW68003-1A – 03.2011
Installation manual
5
4.
O
VERVIEW
OF
UNIT
4.1.
Opening the unit
4.2.
Main components
1 Heat exchanger
2 Fan motor
3 Switch box with main pcb (inverter and control pcb)
4 Terminal communication and power supply
5 Service pcb
6 4-way valve
7 Electronic expansion valve (main)
8 Accumulator
9 Compressor
10 Liquid stop valve
11 Gas stop valve
12 Service port
4.3.
Functional diagram
1 Thermistor (air)
2 Heat exchanger
3 Thermistor (heat exchanger)
4 Fan motor
5 Filter
6 Electronic expansion valve
7 Liquid stop valve
8 Gas stop valve with service port
9 Accumulator
10 Compressor
11 Thermistor (discharge)
12 4-way valve (ON=heating)
Cooling
Heating
5.
S
ELECTING
INSTALLATION
SITE
5.1.
General
■
The equipment is not intended for use in a potentially explosive
atmosphere.
■
Choose a place solid enough to bear the weight and vibration of
the unit, where the operation noise will not be amplified.
■
Choose a location where the hot air discharged from the unit or
the operation noise will not cause a nuisance to the neighbours
of the user.
■
Avoid places near a bedroom and the like, so that the operation
noise will cause no trouble.
■
There must be sufficient space for carrying the unit into and out
of the site.
■
There must be sufficient space for air passage and no
obstructions around the air inlet and the air outlet.
■
The site must be free from the possibility of flammable gas
leakage in a nearby place.
■
Locate the unit so that the noise and the discharged hot air will
not annoy the neighbours.
■
Install units, power cords and inter-unit cables at least 3 m away
from television and radio sets. This is to prevent interference to
images and sounds.
DANGER: ELECTRICAL SHOCK
See
"2. General safety precautions" on page 2
.
DANGER: DO NOT TOUCH PIPING AND INTERNAL
PARTS
See
"2. General safety precautions" on page 2
.
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2
WARNING
■
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.
M
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