To Fill The Water Heater - LG R5TT20F-SA1 Engineering Product Data Book

Heat Pump Water Heater
14. Installation
Connecting the Water
Supply
NOTE
• DO NOT directly solder or braze to hot or cold
water connections. If sweat connections are
used, sweat tubing to adapter before installing
the adapter to the hot or cold water
connections on heater. Any heat applied to the
water supply fittings will permanently damage
the internal plastic lining in these ports.
* The maximum pressure in cold water supply line
is 0.8MPa. If the supply water is greater than
0.8MPa, install a pressure reducing valve.
* Connect the water for filling or refilling the
heating system as specified by EN1717/ EN
61770 to avoid contamination of drinking
water by return flow.
Maximum and minimum water
operating temperatures (°C)
Maximum and minimum water
operating pressure (MPa)
Refer to "Installation Instructions" for suggested
typical installation.
1
Check the type of water pipes in your home.
Use fittings adequate for the type of pipe in
your home.
2
Apply Teflon tape on the G end to prevent
leaking.
3
Connect cold and hot water supply using 3/4"
G.
33
- 50 Hz (R134a)
For ease of disconnecting the water heater
for service or replacement, the installation of
unions is recommended on the water
connections.
4
Install a shut-off valve in the cold water line
near the water heater.
5
Install the insulation on the cold and hot
water pipes. Insulating hot water pipe can
increase energy efficiency.

To Fill the Water Heater

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Do not turn on the electrical power to
water heater unless the tank is
- / 0.8
completely full of water. The water
heater warranty does not cover damage
or failure resulting from operation with
empty or partially empty tank.
1
Make sure that the drain valve on water
heater is completely closed.
2
Turn on the cold water supply
3
Open each hot water faucet slowly and allow
the water to run until it flows with a full
stream.
4
Let the water run full stream for a few
minutes.
WARNING