Table of Contents
Advertisement
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.
NOTE
To access the tundish connected to the
temperature and pressure relief valve, the front
decoration panels need to be removed.
If in any doubt, refer to Building Regulation G3.
Do not install any valves between the domestic hot
water tank and relief valves/expansion vessel.
Installation procedure of the EKUHWHTA kit
1
Locate the domestic hot water tank in a suitable position to
facilitate the installation of water supply, discharge fittings and
pipework. It is therefor recommended to first read through this
whole procedure.
Refer to the figure on the facing page at the start of this chapter
for full understanding of next procedure steps.
Pre-assembly
2
Pre-assemble the pressure
reducing valve (part 1 of
this kit, refer to
page
2) by
mounting the blind stop and
the 2 black plastic screw-on
closing caps (part 3 of this
kit), so that the pressure
reducing valve is ready for installation.
The black plastic plugs in the pressure reducing valve body are
pressure gauge connections to enable pressure monitoring to
be carried out, should the system develop a fault. It is
recommended that these be accessible (the pressure reducing
valve has two - only one need be accessible).
3
Mount the reducing coupler (part 4 of this kit) in between the
pressure reducing valve and the expansion relief valve (part 2 of
this kit) using a length of copper tube Ø22 mm (to the pressure
reducing valve) and a length of copper tube Ø15 mm (to the
expansion relief valve).
Ø22 mm
4
Pre-assemble the adaptor and expansion vessel (parts 8 and 5
of this kit) so that the expansion vessel is ready for installation.
5
Remove the insulation piece to get acces to the factory fitted
temperature and pressure relief valve. Manually operate the
temperature and pressure relief valve to ensure free water flow
through discharge pipe. Turn knob left.
EKHTSU200+260AA + EKUHWHTA
Domestic hot water tank with UK kit for air to water heat pump system
4PW53247-1B
Ø15 mm
Water main in
6
Fit the elbow/drain valve (part 7 of this kit) in the cold water
flexible hose coming out of the rear plate.
Pay attention to position the drain valve in such a way that 80%
of the domestic hot water tank can be drained.
7
Position both, the pressure reducing valve with integrated non
return valve and line strainer and the expansion relief valve
(parts 1 and 2 of this kit - see also procedure step 2) as high as
possible and connect it to the water mains inlet.
The expansion relief valve must be installed with a horizontal
discharge. If fitted inverted, debris may be deposited on the seat
and cause fouling of the seat when the valve operates. Check
direction of flow arrows.
Fit a length of copper tube Ø22 mm (field supply) in between the
elbow/drain valve (procedure step 6) and the pressure reducing
valve.
Make sure to provide for a connection on this pipe to the
expansion vessel (part 5 of this kit).
8
Fit a length of copper tube Ø22 mm (field supply) inbetween the
T-piece (part 9 of this kit) and the pre-assembled expansion
vessel (procedure steps 4 and 7).
Discharge
9
Remove the front decoration panels of the domestic hot water
tank. Install the first tundish (part 6 of this kit) in a vertical
position within a maximum of 500 mm away from the
temperature and pressure relief valve. Use the foreseen space
inside the domestic hot water tank module as indicated in the
figure. Use tie-wraps to firmly fix the tundish.
10 Connect a metal discharge pipe Ø15 mm (field supply) from the
temperature and pressure relief valve to the tundish (≤500 mm).
11 Install the second tundish (part 6 of this kit) in a vertical position
within a maximum of 500 mm away from the expansion relief
valve.
12 Connect a metal discharge pipe Ø15 mm (field supply) from the
expansion relief valve to the tundish (≤500 mm).
13 Connect discharge pipes from both tundishes. Refer to
paragraph
"Tundish pipework" on page
All pipework must have a continuous fall and be fitted conform to
the requirements of the Building Regulation G3.
After completing the installation
14 After completing the installation, the installer has to fill in the
warning label on the tank with indelible ink. The warning label is
located on the lower front decoration panel inside.
Do not remove
Contact the installer.
Should the system develop a fault, switc
contact the installer.
This installation is subject to building regulation approval,
notify Local Authority of intention to install.
Use only manufacturer's recommended spare parts.
Contact your local Daikin dealer.
Installed by
name
address
tel. No.
completion date
8.
Installation manual
9
Advertisement
Table of Contents
