INSTALLATION
NOTE: DO NOT INSTALL THE WATER HEATER ON ITS SIDE OR UPSIDE DOWN.
1.
Locate water heater at engine level as close to engine as possible.
2.
Secure mounting brackets to structure with eight #12 minimum screws or ¼-20 minimum
cap screws and nuts.
3.
Connect cold water supply and hot water outlet to heater as marked, ½” NPT fittings
4.
Connect heat exchanger system described in figure above. Make sure coolant system is
completely purged of air and full of coolant before operating.
5.
The pressure temperature relief valve is factory installed. The pressure relief valve shall
limit the pressure to 127.5 PSI (879.3 KPA) minimum, 150 PSI (1034.2 KPA) maximum.
The valve must be oriented, provided with tubing, or otherwise installed so that the
discharge can exit no more that 6 inches above, or at any distance below the structural
floor and cannot contact any live electrical part.
Install replacement temperature and pressure protective equipment required by local
codes, but not less than a combination temperature and pressure relief valve certified as
meeting the requirements for relief valves and automatic gas shutoff devices for hot water
supply systems, ANSI Z21.22 by a nationally recognized testing laboratory that
maintains periodic inspection of production of listed equipment or materials.
6.
Connect the electrical supply by a qualified electrician. The electrical supply shall be
permanent wiring, armored cable or conduit, per national electrical code NFPA 70, with a
minimum capacity of 1500 watts. On 120 volt circuits, use a UL approved 15 amp circuit
breaker. On 240 volt circuits, use a 10 amp approved circuit breaker per leg.
7.
GROUNDING INSTRUCTIONS: The supply ground shall be connected to the green
wire located in the water heater wiring compartment. Do not place the switch in the
ground circuit.
