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Daikin EKHWSU200B3V3 [7/16] Field wiring
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EKUHWBB + EKUHW2WB + EKHWSU150-300B3V3
Domestic hot water tank with option kit for air to water heat pump
system
Installation manual
6
Field wiring
See also "Field wiring diagram" on page 13.
Power circuit and cable requirements
For cable requirements and specifications, see "Field wiring" in the
unit installation manual supplied with the unit.
Thermistor cable
The distance between the thermistor cable and power supply cable
must always be at least 5 cm to prevent electromagnetic interference
on the thermistor cable.
Procedure
Connections to be made in the domestic hot water tank
electrical box
1 Prior to upwiring
Make sure to ensure strain relief of the power cable by correctly
mounting the PG nipple and PG nut (delivered with the tank).
2 Booster heater power supply
Connect the booster heater power
supply and thermal protection cable
as shown in wiring diagram sticker
on the inside of the switch box lid.
3 Solenoid valve power supply
Connect the solenoid valve power
supply cable as shown in the
following diagram sticker on the
inside of the switch box lid.
4 Solenoid valve
Connect the solenoid valve as
shown in the following diagram
sticker on the inside of the switch
box lid.
Connections to be made in the unit switch box
5 Mount the prewired contactor (K3M), circuit breaker (F2B) and
terminal blocks (X3M, X4M). The contactor and terminal blocks
should be fixed with the 3
× 2 screws supplied.
6 Plug the connector connected to the contactor K3M in the socket
X13A on the PCB.
7 Plug the thermistor cable connector in the socket X9A on the
PCB.
8 Connect the prewired earth wires of the terminal block X3M and
X4M to the earthing screw.
9 Connect the booster heater power supply and thermal protection
cable (field supply) to terminal X4M earth, 1, 2, and X2M 13, 14.
10 For other models: Connect the booster heater power supply
cable to the terminal block X3M.
Only for EHBH/X: Connect the booster heater power supply
cable to the circuit breaker (F2B). The earth wire must be
connected to X4M.
11 Connect the solenoid valve power supply cable to terminal block
X7M as shown on wiring diagram B in paragraph "Connections
to be made in the domestic hot water tank electrical box" on
page 6.
12 Fix the cables to the cable tie mountings with cable ties to
ensure strain relief.
13 For other models: Set DIP switch SS2-2 on the PCB to ON.
Only for EHBH/X: Connections to the domestic hot water tank
must be enabled by installer settings on the indoor unit. Refer to
the installer reference guide.
14 When routing out cables, make sure that these do not obstruct
mounting of the unit cover.
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 and national legislation.
All field wiring and components must be installed by a
licensed electrician and must comply with relevant
European and national regulations.
The field wiring must be carried out in accordance
with the wiring diagram sticker supplied with the unit
and the instructions given below.
The domestic hot water tank must be earthed via the
unit.
Be sure to use a dedicated power circuit. Never use a
power circuit shared by another appliance.
Use one and same dedicated power supply for the
unit(s), backup heater and domestic hot water tank.
NOTICE
Select the power cable in accordance with relevant local
and national regulations.
Switch off the power supply before making any
connections.
Make sure all field wiring is insulated from the surface of
the inspection hole or can resist temperatures to 90°C.
1x
NOTICE
Only for EHBH/X:
X3M will not be installed. See figure in "For EHBH/X units
only" on page 8 for more details.
4P344370-1.book Page 6 Tuesday, April 2, 2013 2:32 PM
4P344370-1B – 2019.08
Содержание
- Domestic hot water tank with option kit for air to 1
- Installation manual 1
- Water heat pump system 1
- Accessories 2
- Accessories supplied with the ekhwsu domestic hot water tank 2
- Contents 2
- General information 2
- Installation manual 2
- Introduction 2
- Model identification 2
- Scope of this manual 2
- Accessories supplied with the ekuhw2wb option kit for the domestic hot water tank when the eksolhwav1 option kit is installed 3
- Accessories supplied with the ekuhwbb option kit for the domestic hot water tank 3
- Installation of the ekhwsu domestic hot water tank 3
- Optional equipment 3
- C and excessive water pressure 10 bar in the domestic hot water tank 4
- Do not install heaters without thermal cut outs 4
- Expansion relief valve option kit the pressure relief valve prevents excessive water pressure 8 bar in the water circuit 4
- For ekuhw2wb only secondary thermal protector solenoid 2 way valve the thermal protector will close the solenoid 2 way valve setting 85 c both thermal protectors are activated when the temperature becomes too high when activated the protectors have to be reset on the domestic hot water tank by pressing the red button for access remove the electrical box lid 4
- For ekuhw2wb only thermostat solenoid 2 way valve the thermostat will close the solenoid 2 way valve when the temperature becomes too high setting 79 c 4
- Main components 4
- Notice 4
- Refer to installation of the option kit on the domestic hot water tank on page 9 for connection of other safety devices in accordance with relevant local and national regulations 4
- Safety devices 4
- Switch off the power supply before opening the electrical box lid 4
- The domestic hot tank relief valve connections should not be used for other purposes 4
- The electrical box lid must only be opened by a licensed electrician 4
- Thermal protector the booster heater in the domestic hot water tank is equipped with a thermal protector setting 85 c 4
- Connecting the 3 way valve 5
- Connecting the water circuits 5
- Installation guidelines 5
- Installing the domestic hot water tank 5
- Outlook diagram 5
- Field wiring 7
- Power circuit and cable requirements 7
- Procedure 7
- Thermistor cable 7
- For e d b h l q011 014 016 units only 8
- For ekhbh x units only 8
- Note only relevant field wiring is shown 8
- A1p x9a 9
- For ekcbh x units only for ehbh x units only 9
- X2m 13 14 9
- X2m 8 9 10 9
- Fixed grating 10
- Installation of the option kit on the domestic hot water tank 10
- Piping requirements 10
- Trapped effluent water 10
- After completing the installation 11
- Commissioning 11
- Discharge 11
- Draining 11
- Filling up 11
- Installation procedure of the option kit 11
- Only when installing the ekuhw2wb option kit flow inlet connection 11
- Pre assembly 11
- Water main in 11
- General guidelines 12
- General symptoms 12
- Maintenance 12
- Troubleshooting 12
- Domestic hot water tank specifications 13
- Symptom 4 continuous water discharge 13
- Technical specifications 13
- 14 1 2 x4m 14
- Field wiring diagram 14
- Pressure reducing valve specifications 14
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