EKMBUHBA6V3
Heater kit for air to water heat pump system
4PW63549-1 – 08.2010
Installation and operation manual
5
6.3.
Installing the heater kit
■
At delivery, the heater kit must be checked and any damage
must be reported immediately to the carrier claims agent.
■
Check if all heater kit accessories (see "4. Accessories" on
page 3) are enclosed.
1
Mark the fixation positions on the wall (2 on top and 2 at the
bottom).
Make sure that the marks (2 by 2) are completely level and the
dimensions of the marks are corresponding according to
figure 1.
When the heater kit is not installed level, air might get trapped in
the water circuit resulting in malfunctioning of the heater.
2
Drill 4 holes and install 4 plugs (suitable for M6).
Plugs and screws are field supply.
3
Put the screws in the top plugs and hang the heater kit on the
top screws.
4
Put the screws in the bottom plugs and fix the 4 screws firmly.
6.4.
Connecting the water circuits
For details on connecting the water circuits and charging the system
with water refer to the outdoor unit installation manual.
1
If required (see "5.2. Safety devices" on page 4) connect a
pressure relief valve on the inlet of the heater kit (field supply,
opening pressure maximum 4 bar).
2
Connect the heater water inlet to the space heating water outlet
of the indoor unit. Connect the heater water outlet to the load.
See figure in section "3.4. General system setup" on page 3.
3
Charge the system with water.
6.5.
Field wiring
2
1
1
3
4
1
1
NOTICE
Be careful not to deform the heater piping by using
excessive force when connecting the piping.
Deformation of the piping can cause the heater to
malfunction.
NOTICE
Make sure the air purge of the heater is open (at least 2
turns).
CAUTION
■
A main switch or other means for disconnection,
having a contact separation in all poles, must be
incorporated in the fixed wiring in accordance with
relevant local laws and regulations.
■
Switch off the power supply before making any
connections.
■
Use only copper wires.
■
All field wiring and components must be installed by a
licensed electrician and must comply with relevant
local laws and regulations.
■
Be sure to install the required fuses as mentioned on
the electrical wiring diagram.
■
The field wiring must be carried out in accordance
with the wiring diagram supplied with the heater kit
and the instructions given below.
■
Never squeeze bundled cables and make sure that it
does not come in contact with the piping and sharp
edges.
Make sure no external stress is applied to the terminal
connections.
■
Be sure to use a dedicated power supply. Never use a
power supply shared by another appliance.
■
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.
■
Make sure all field wiring is insulated from the heater
kit and piping or can resist temperatures up to 90°C.
■
Be sure to install an earth leakage protector in
accordance with relevant local laws and regulations.
Failure to do so may cause electrical shock.
4PW58903-1A_digital.book Page 5 Friday, September 17, 2010 11:37 AM
