Rheem 491 Owner's Manual And Installation Instructions page 33

LEFT AND RIGHT HAND SIDE WATER CONNECTIONS
The cold and hot water supplies (491/492 series models) can be connected to
either side of a water heater. A kit is supplied with the water heater to plug off
the unused cold water and hot water fittings, and where applicable the unused
temperature pressure relief valve fitting.
The kit contains:
Plugging Off Unused Connections

Apply approved sealing tape or compound to the thread of each plug.

Fit the ¾" plugs to the unused cold water fitting and unused hot water fitting.
Tighten the plugs using either a 12 mm A/F hex driver or a 3/8" square driver,
as appropriate.

Fit a plastic cap with its insulation rubber disc over each plug.
INSULATION RUBBER
491/492 series models
INSULATION CAP & DISK ASSEMBLY
250-400 MODELS ELECTRIC
Models 400
2 x ¾" brass plugs
2 x plastic caps
2 x insulation rubber discs,
pre-fitted into plastic caps
PLASTIC CAP
BRASS PLUG
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