Rheem Electric Domestic Water Heater Installation And Owner's Manual page 28

CONNECTIONS – PLUMBING
LEFT AND RIGHT HAND SIDE WATER CONNECTIONS
The cold water supply, hot water supply and temperature pressure relief valve
can be connected to either side of a water heater with both left and right hand
side water connections. A kit is supplied with the water heater to plug off the
unused cold, hot and temperature pressure relief valve fittings. The kit contains:
Model 050
2 x ¾" brass plugs
1 x ½" brass plug
2 x large plastic insulation caps
1 x small plastic insulation cap
Plugging Off Unused Connections – 050 model
Apply approved sealing tape or compound to the thread of each plug.
Fit a ¾" plug to each of the unused cold water and hot water fittings and the
½" plug to the unused TPR valve fitting. Tighten the plugs.
Fit a plastic insulation cap over each plug.
PIPE SIZES
To achieve true mains pressure operation, the cold water line to the water
heater should be the same size or bigger than the hot water line from the water
heater.
The pipe sizing for hot water supply systems should be carried out by persons
competent to do so, choosing the most suitable pipe size for each individual
application. Reference to the technical specifications of the water heater and
local regulatory authority requirements must be made.
TEMPERATURE PRESSURE RELIEF VALVE
The temperature pressure relief valve is shipped either under the top flap of the
water heater carton or behind the front cover or in a plastic bag attached to the
water heater. The temperature pressure relief valve must be fitted before the
water heater is operated. Before fitting the relief valve, make sure the probe
has not been bent. Seal the thread with Teflon tape - never hemp. Make sure
the tape does not hang over the end of the thread.
Screw the valve into the correct opening
page 25) leaving the valve outlet pointing downwards. Do not use a wrench on
the valve body - use the spanner flats provided. A copper drain line must be
fitted to the temperature pressure relief valve (refer to
page 30).
(refer to the installation diagram on
"Relief Valve Drain"
28
on