RRHQ006~008ADV3(8)
Outdoor unit for air to water heat pump
4PW50201-1
Installation manual
2
■
During installation, attach the refrigerant piping securely before
running the compressor.
If the compressor is not attached and the stop valve is open
during pump-down, air will be sucked in when the compressor is
running, causing abnormal pressure in the freezer cycle which
will lead to breakage and even to injury.
■
Be sure to establish an earth. Do not earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock. A high
surge current from lightning or other sources may
cause damage to the outdoor unit.
■
Be sure to install an earth leakage circuit breaker.
Failure to do so may cause electrical shock.
Cautions
■
Do not install the outdoor unit in a place where there is
danger of exposure to inflammable gas leakage.
If the gas leaks and builds up around the unit, it may
catch fire.
■
Tighten the flare nut according to the specified method such as
with a torque wrench.
If the flare nut is tightened too hard, the flare nut may crack after
a long time and cause refrigerant leakage.
M
ODEL
RRHQ_V38 units include special equipment to ensure good
operation in areas where low ambient temperature can occur
together with high humidity conditions. In such conditions the
RRHQ_V3 models may experience problems with severe ice build up
on the aircooled coil. In case such conditions are expected, the
RRHQ_V38 must be installed instead. These models contain
countermeasures to prevent freeze up and require on-site installation
of the bottom plate heater kit supplied with the outdoor unit.
Refer to the installation manual supplied with the bottom plate heater
kit for on-site installation of the bottom plate heater to RRHQ_V38
models.
A
CCESSORIES
■
Accessories supplied with the outdoor unit:
■
Possible options
I
NSTALLATION
GUIDELINES
Precautions for selecting the location
■
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.
■
Depending on radio wave conditions, electromagnetic
interference may still occur even if installed more than 3 m away.
■
In coastal areas or other places with salty atmosphere of sulfate
gas, corrosion may shorten the life of the outdoor unit.
■
Since drain flows out of the outdoor unit, do not place anything
under the unit which must be kept away from moisture.
Selecting a location in cold climates
■
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, install a baffle plate on the air
discharge side of the outdoor unit.
V3
V38
Installation manual
1x
Bottom plate heater kit
—
1x
Fluorinated greenhouse gases
label
1x
Multilingual fluorinated
greenhouse gases label
1x
Bottom plate heater
Drain socket
RRHQ_V3
Optional kit
(1)
(1) Combination of both options is prohibited.
Optional kit
(1)
RRHQ_V38
Standard
Use prohibited
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.
NOTE
Units cannot be installed hanging from ceiling or
stacked.
CAUTION
When operating the outdoor unit in a low outdoor ambient
temperature, be sure to follow the instructions described
below.
4PW50201-1_off,-2N dig Page 2 Wednesday, October 22, 2008 10:39 AM