Installation manual
21
EKHBH/X016BB
Indoor unit for air to water heat pump system
4PW62572-1A – 01.2011
Connection of the valve control cables
Valve requirements
■
Power supply: 230 V AC
■
Maximum running current: 100 mA
Wiring the 2-way valve
1
Using the appropriate cable, connect the valve control cable to
the X2M terminal as shown on the wiring diagram.
2
Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
Wiring the 3-way valve
1
Using the appropriate cable, connect the valve control cable to
the appropriate terminals as shown on the wiring diagram.
2
Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
Connection of the bottom plate heater
1
Using the appropriate cable, connect the power supply cable to
the appropriate terminals as shown on the wiring diagram below.
2
Fix the cable(s) with cable ties to the cable tie mountings to
ensure strain relief.
3
When routing out cables, make sure that these do not obstruct
mounting of the indoor unit cover.
4
Select the appropriate field setting values for the bottom plate
heater. See
Connection to a benefit kWh rate power supply
Electricity companies throughout the world work hard to provide
reliable electric service at competitive prices and are often authorized
to bill clients at benefit rates. E.g. time-of-use rates, seasonal rates,
Wärmepumpentarif in Germany and Austria, ...
This equipment allows for connection to such benefit rate power
supply delivery systems.
Consult with the electricity company acting as provider at the site
where this equipment is to be installed to know whether it is
appropriate to connect the equipment in one of the benefit kWh rate
power supply delivery systems available, if any.
When the equipment is connected to such benefit kWh rate power
supply, the electricity company is allowed to:
■
interrupt power supply to the equipment for certain periods of
time;
■
demand that the equipment only consumes a limited amount of
electricity during certain periods of time.
The indoor unit is designed to receive an input signal by which the
unit switches into forced off mode. At that moment, the outdoor unit
compressor will not operate.
Possible types of benefit kWh rate power supply
Possible connections and requirements to connect the equipment to
such power supply are illustrated in the figure below:
1
Benefit kWh rate power supply box
2
Receiver controlling the signal of the electricity company
3
Power supply to outdoor unit (refer to the installation
manual delivered with the outdoor unit)
4
Voltage free contact to indoor unit
5
Normal kWh rate power supply
NOTICE
Wiring is different for a NC (normal closed) valve and
a NO (normal open) valve. Make sure to connect to
the correct terminal numbers as detailed on the wiring
diagram and illustrations below.
Normal closed (NC) 2-way valve
Normal open (NO) 2-way valve
NOTICE
Two types of 3-way valves can be connected. Wiring
is different for each type:
■
"Spring return 2-wire" type 3-way valve
The 3-way valve should be fitted as such that
when the 3-way valve is idle (not activated), the
space heating circuit is selected.
■
"SPST 3-wire" type 3-way valve
The 3-way valve should be fitted as such that
when terminal ports 9 and 10 are electrified, the
domestic hot water circuit is selected.
"Spring return 2-wire" valve
"SPST 3-wire" valve
bottom plate heater
NC
5
X2M
6
7
M
NO
5
6
X2M
7
M
9
X2M
8
10
M
9
X2M 8
10
M
1
X1Y
X2M
2
15a 15
INFORMATION
Bottom plate heater is only applicable in combination with
ERLQ_AA/AB/BA or in case of optional EKBPHT kit. The
ERLQ_CA outdoor unit controls the bottom plate heater
internally by the outdoor unit pcb.
1
2
3
X2M
17 18
30 31
L N
X40A
A1P
L N
2
4
1
3
5
3
L N
2
1
4
3
4
3
L N
2
1
S2S
S2S
S2S
[d-01]=1
1
2
3
L N
2
1
3
L N
2
1
4
3
4
4
4
3
L N
2
1
S2S
S2S
S2S
[d-01]=2
Содержание EKHBH016BB3V3
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