Easy-Kleen EZN195 Operating Manual - Gas Supply
9
NG & LPG Heaters • Rev. 4/13/2016
HIGH LIMIT TEMPERATURE CONTROL
The water heater is equipped with a “high limit control” thermostat present at 220 F. It shuts
down the burner in the event of excessive outlet temperature caused by insufficient water flow
through the heater coil. This control can be adjusted to desired temperature up to but not
exceeding 220 F.
PRESSURE SWITCH
A pressure switch is installed on the high pressure pump to prevent burner operation in the
absence of water flow. When heater is used with shutoff gun pumping systems, the pressure
switch controls the burner in conjunction with operation of the trigger gun.
FLOW SWITCH
A flow switch is installed on the outlet of the high pressure pump and will shut off the pump and
motor in the absence of water flow as well as turning it back on when flow is detected (by
squeezing the wand trigger).
SAFETY RELIEF VALVE
WARNING: The safety relief valve on this unit has been factory set and is not to be
adjusted. Tampering with relief valve may cause personal injury or equipment damage and
will void the manufacturer warranty.
INSTALLATION INSTRUCTIONS
These water heaters are certified for installation on combustible flooring with clearance to
combustible walls as follows: 6 inches at rear, 18 inches at end, and 24 inches at front.
Installations must be performed in accordance with CAN1 B149.1 and 2 Codes and UL 1766
requirements in Canada and/or prevailing state and local codes in the USA.
GAS SUPPLY
Have a qualified technician install the gas supply line to the machine.
NATURAL GAS
Run a minimum 1 inch IPS gas supply line to the heater reducing to 3/4 IPS at inlet of
combination gas valve. Install a gas shutoff cock in supply line to provide for shutting off the gas
for routine line maintenance or repairs. The gas supply pipe shall be a direct line from the gas
burning equipment in the building.