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Daikin EKHWS-B3V3 [10/16] Installation of the option kit on the domestic hot water tank
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Installation manual
9
EKUHWBB + EKUHW2WB + EKHWSU150-300B3V3
Domestic hot water tank with option kit for air to water heat pump
system
4P344370-1 – 2013.03
Installation of the option kit on the domestic hot water tank
Piping requirements
Tundish
The tundish should be vertical, located in the same space as the
domestic hot water tank and be fitted as close as possible to, but
lower than the temperature and pressure relief valve on the
domestic hot water tank and the expansion relief valve included
in the option kit, with no more than 600 mm of pipe between the
valve outlet and the tundish. The tundish must be visible.
Tundish pipework
Tundish pipework must be 22 mm metal pipe with a minimum
vertical length of 300 mm below the tundish before any elbows
or bends in the pipework. All pipework must have a continuous
fall of at least 1 in 200 thereafter. Maximum permitted
(equivalent) length of 22 mm pipework is 9 m. Each bend or
elbow is equivalent to 0.8 m of pipework.
Sizing of copper discharge pipe D2 for common temperature
relief valve outlet sizes
Requirements to discharges
Discharge piping, tundish, drain valves, etc. must be
positioned away from any electrical components.
The discharge pipe away from the tundish must terminate in
a safe, visible position without forming any risk to persons in
the vicinity.
If in any doubt, refer to Building Regulation G3.
All pipework and fittings must be flushed free of all flux and debris prior to the fitting of controls of this option kit. Failure to do this
may cause irreparable damage to the controls. Flush the system by opening the hot water tap.
All cautions as under chapter "Installation of the EKHWSU domestic hot water tank" on page 2 remain of extreme importance and
are equally valid in this chapter.
H
C
R
F
5
600 mm
>300 mm
D1
D1
D2
Fixed grating
Trapped
effluent water
10
8
9
6
6
6
11
7
12
13
3
12
600 mm
2
4
EKUHW2WB
6
Valve
outlet
size
Discharge
pipe size D1
Discharge
pipe size D2
from tundish
Maximum
resistance
(a)
(a) The maximum allowed resistance is expressed as a length of straight pipe
(i.e. no ellbows or bends)
Resistance
created by
each elbow
or bend
15 mm 15 mm 22 mm up to 9 m 0.8 m
Do not install any valves between the domestic hot
water tank and relief valves/expansion vessel.
4P344370-1.book Page 9 Tuesday, April 2, 2013 2:32 PM
Содержание
- Domestic hot water tank with option kit for air to water heat pump system 1
- Installation manual 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
- For ekcbh x units only for ehbh x units only 9
- X2m 8 9 10 a1p x9a x2m 13 14 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 x2m k3m 14
- Field wiring diagram 14
- Pressure reducing valve specifications 14
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