Water Pipework - Daikin EDLQ036BA6VJU1 Installation Manual

Switch box main components (door 2)
A
A
24
9
9
8
B
15
K4M
3
1
26
K2A
1
5
4
2
13
X9A
D
8
6
7
18
X
5
19
M
22
Backup heater contactors K1M and K5M
1.
Main PCB
2.
The main PCB (Printed Circuit Board) controls the functioning of
the unit.
Booster heater contactor K3M (only for installations with
3.
domestic hot water tank)
Booster heater circuit breaker F2B (only for installations with
4.
domestic hot water tank)
The circuit breaker protects the booster heater in the
water tank against overload or short circuit.
hot
Backup heater circuit breaker F1B
5.
The circuit breaker protects the backup heater electrical circuit
against overload or short circuit.
Terminal blocks
6.
The terminal blocks allow easy connection of field wiring.
Terminal block for backup heater capacity limitation.
7.
Cable tie mountings
8.
The cable tie mountings allow to fix the field wiring with cable
ties to the switch box to ensure strain relief.
Terminal blocks X3M, X4M (only for installations with domestic
9.
hot water tank)
10. PCB fuse FU1
11. DIP switch SS2
The DIP switch SS2 provides 4 toggle switches to configure
certain installation parameters. See "DIP switch settings
overview" on page 23.
12. X13A socket
The X13A socket receives the K3M connector (only for
installations with domestic hot water tank).
EDLQ036~054BA6VJU1 + EBLQ036~054BA6VJU1
Unit for air to water heat pump system
4PW56182-1
B C
D
C
14
FU2
10
FU1
16
12
X13A
11
SS2
17
30 K6A
K7A
29
K5A
28
K4A
K3A
8
8
23
6
X10M
X2M
21
20
domestic
13. X9A socket
The X9A socket receives the thermistor connector (only for
installations with domestic hot water tank).
14. Pump fuse FU2 (in line fuse)
15. Pump relay K4M
16. Transformer TR1 for PCB power supply
17. A4P Solar/remote alarm input/output PCB (only for installations
with solar kit or remote alarm kit)
18. Conduit hole to pass through the booster heater power supply
cable.
19. Conduit hole to pass through the booster heater power supply
cable and the thermal protection cable.
20. Conduit hole to pass through the room thermostat cable and
2-way valve and 3-way valve control cables.
21. Conduit hole to pass through the thermistor cable and user
interface cable (and benefit kWh rate cable).
22. Conduit hole to pass through the backup heater power supply
wiring.
23. Conduit hole to pass through optional input/output PCB
connection wiring.
24. Transformer TR2 for relays and valves
25. K1A relay for 3-way valve
26. K2A relay for 2-way valve
27. K3A relay for room thermostat (optional)
28. K4A relay for room thermostat (optional)
29. K5A relay for remote alarm (optional)
30. K6A relay for remote heating/cooling (optional)
31. K7A relay for solar pump
32. Terminal block X8M
Terminal block X8M is used to select the power input to
transformer TR2
NOTE The electrical wiring diagram can be found on the
inside of the switch box cover.

Water pipework

All piping lengths and distances have been taken into consideration.
Requirement
Maximum allowable distance between the domestic hot
water tank and the unit (only for installations with domestic
hot water tank). The thermistor cable supplied with the
domestic hot water tank is 40 ft (12 m) in length.
In order to optimise efficiency Daikin recommends to install
the 3-way valve and the domestic hot water tank as close
as possible to the unit.
If the installation is equipped with a domestic hot water
NOTE
tank (optional), please refer to the domestic hot water
tank installation manual.
In case of a power supply failure or pump operating failure,
drain the system (as suggested in the figure below).
A
When water is at standstill inside the system, freezing is
very likely to happen and damaging the system in the
process.
Value
33 ft (10 m)
<A
Installation manual
13