Hubbell G250P, Installation & Operation Manual

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Install and connect the cold water line. If an optional hot
water storage tank is required, connect the hot water lines
to this tank also.
NOTE
: If the incoming water is known to have a
high mineral content or “hardness” (>1
5
ppm),
treatment is recommended upstream from the
water heater.
1. Connect a 3/4” NPT coupler to the water heater’s cold
water connection.
2. Install a 3/4” union connection.
3. Install an inline wye-strainer. Make sure the strainer is
positioned to allow servicing of the strainer screen.
IH-62
4. Following local building codes, install a manual shut-off
valve with 3/4” NPT fi ttings.
5. Connect the unit to the existing cold water lines.
If the existing plumbing is 1/2” pipe, adapters may be
used to transition from the 3/4” pipe. If multiple water
heaters are being installed, the diameter of both the
cold water lines and the hot water lines need to be
sized appropriately.
6. Leak test the water piping before placing the unit in
operation.
Connecting Multiple Units INSTALL COLD WATER LINES