RKBW1
Heater kit for air to water heat pump system
4PW58904-1
Installation and operation manual
2
General system setup
The heater kit is to be installed in series with the space heating water
outlet of the RKHBRD indoor unit as shown in the figure below.
A
CCESSORIES
Accessories supplied with the heater kit
See figure 1.
S
AFETY
CONSIDERATIONS
The precautions listed here are divided into the following four types.
They all cover very important topics, so be sure to follow them
carefully.
Danger
■
Switch off all power supply before removing the service panel or
before making any connections or touching electrical parts.
To avoid electric shock, be sure to disconnect the power supply
1 minute or more before servicing the electrical parts. Even after
1 minute, always measure the voltage at the terminals of main
circuit capacitors or electrical parts and, before touching, be
sure that those voltages are 50 V DC or less.
■
When service panels are removed, live parts can be easily
touched by accident.
Never leave the heater kit unattended during installation or
servicing when the service panel is removed.
■
Do not touch the internal parts during and immediately after
operation.
Your hands may suffer burns if you touch the internal parts. To
avoid injury, give the internal parts time to return to normal
temperature or, if you must touch them, be sure to wear proper
gloves.
■
Do not touch any switch with wet fingers. Touching a switch with
wet fingers can cause electrical shock.
Warning
■
Tear apart and throw away plastic packaging bags so that
children will not play with them.
Children playing with plastic bags face danger of death by
suffocation.
■
Safely dispose of packing materials. Packing materials, such as
nails and other metal or wooden parts, may cause stabs or other
injuries.
Caution
■
Earth the heater kit.
Earthing resistance should be according to local laws and
regulations.
Be sure to establish an earth. Do not earth the heater
kit to a utility pipe, surge absorber, or telephone earth.
Incomplete earth may cause electrical shock.
■
Gas pipe.
Ignition or explosion may occur if the gas leaks.
■
Water pipe.
Hard vinyl tubes are not effective earths.
■
Lightning conductor or telephone earth wire.
Electric potential may rise abnormally if struck by a lightning
bolt.
■
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 rinse the heater kit. This may cause electric shocks or
fire.
1
Outdoor unit
10
Collector (field supply)
2
Indoor unit
11
Radiator (field supply)
3
Refrigerant heat exchanger
12
Electronic expansion
valve
4
Water heat exchanger
5
Compressor
13
By-pass valve
(field supply)
6
Pump
7
Shut-off valve
14
Heater kit
8
Motorized 3-way valve
(optional)
C1
Remote controller
A
Installation place
9
Domestic hot water tank
(optional)
B
Living room
1
Installation and operation manual
2
Cable gland - small
3
Cable gland - large
Meanings of DANGER, WARNING, CAUTION and NOTE symbols.
DANGER
Indicates an imminently hazardous situation which, if not
avoided, will result in death or serious injury.
WARNING
Indicates a potentially hazardous situation which, if not
avoided, could result in death or serious injury.
CAUTION
Indicates a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury. It may also
be used to alert against unsafe practices.
NOTE
Indicates situations that may result in equipment or
property-damage accidents only.
7 7
10 13
4
3
12
12
2
1
8
6
5
14
M
11
9
C1
A
B
4PW58904-1_offset.book Page 2 Monday, February 22, 2010 9:59 AM
