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Water connections
1. The HOTRUN X range of water heaters can be connected to a mains cold water
supply with a pressure of minimum 60KPa and maximum of 1.2MPa. On a rainwater
supply the water must be filtered and have a constant and stable pressure & flow rate
to avoid temperature variations during use.
2. The hot and cold-water connections can not be swapped, the Hotrun will fail to turn
on.
Blue marked fitting
is the cold-water inlet,
Red marked fitting
is the hot water
outlet connection.
2. Flush pipes to remove any debris or loose particles.
3. Always use the 1/2
/ 15mm full bore isolation valve in the cold-water supply and
＂
flat-sealing flexible hoses supplied to connect the hot & cold water for both concealed
and surface mounted pipework. The flexible hoses supplied are rated to the pressure
and highest temperature of the Hotrun and Watermark approved.
4. Install supplied fiber washers in all connections. After completing the water
connections check thoroughly for any leaks and fix before proceeding.
5. When replacing an existing water heater that is already connected with flexible
hoses, do not re-use any old flexible hoses. Install the new water heater with the new
flexible hoses supplied with each Hotrun X.
When tightening the water connections, avoid any force on the water heater fittings
that can cause damage inside the water heater (not covered by warranty).
Connect incoming cold water to the
blue marked fitting
outgoing hot to the
red marked
fitting
with the supplied flexible hoses. You can remove the bottom cover part by
pressing the two locking tabs at point A and pulling the lower section B of the back
panel upwards (see fig. 4)
Connect inlet water connector with the water flow control valve and outlet water
connector with the supplied green fiber washers only.
IMPORTANT: Plumbing tape MUST NOT be used on the connectors.
The flow needs to be set according to the selected kWatt power, see specifications on
page 8.
For concealed installation
(Fig
5-A), you can remove the bottom part of the cover to
secure the corrugated stainless steel flexible hoses to the inlet water connector with
the shut-off valve (if possible) and the outlet water connector, slide the bottom part
back onto the main base and secure with the lower screw.
For non-concealed installation
(Fig
5-B), install the lower cover part onto the main
base, connect the inlet and outlet pipes to the pipework holding the fittings in place
with a spanner to avoid rotating internal pipework and leaks. Secure the water pipes
to the inlet water connector with the shut-off valve and outlet water connector.
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