Magikist HWG20, Instruction Manual

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-8-
once relighting procedure is complete).
Because LP (propane) gas is heavier than air,
heaters utilizing these gases should have the
floor areas vented and blown clear before
relighting the pilot.
WARNING:
IF YOU SMELL GAS, SHUT OFF THE GAS
SUPPLY TO THE APPLIANCE AND
EXTINGUISH ANY OPEN FLAME. IF THE
ODOUR PERSISTS, CALL YOUR GAS
INSTALLER IMMEDIATELY.
ADVERTISSEMENT
:
SI UNE ODEUR DE GAZ EST DÉCELÉE,
COUPER L’ALIMENTATION EN GAZ DE
L’APPAREIL ET ÉTEINDRE TOUTES LES
FLAMMES. SI L’ODEUR PERSISTE, AVERTIR
IMMÉDIATEMENT LE FOURNISSEUR DE GAZ.
To light the pilot, turn the knob on the combination
gas valve from “off” to the “pilot” position. While
pressing down on the knob, light the pilot. Once lit,
hold down the knob (approximately 30 seconds)
until pilot remains lit when the knob is released.
5.6 CHECK IGNITION OF MAIN BURNERS
1) Ensure that the POWER and FLUE STATUS
indicators on the P
RO
S
AFE
II
control are both
on. If a automatic vent damper is NOT installed
the DAMPER OPEN indicator should be on. If a
power venter is NOT installed the POWER
VENTER ON indicator should be on. For
installations that do NOT utilize a Magikist
control panel and have wired the EXTERNAL
CONTROL to an external switch, relay, or
contactor, you will need to perform the action
necessary to turn the EXTERNAL CONTROL
indicator on.
2) If the THERMOSTAT indicator is not on, press
the up arrow button located below the
temperature setting display on the
P
RO
S
AFE
II
control to increase the desired water outlet
temperature, until the the THERMOSTAT
indicator turns on.
3) FOR ELECTRONIC IGNITION HEATERS:
Turn the switch on the combination gas valve
from “off” to “on”.
FOR STANDING PILOT HEATERS: Turn the
knob on the combination gas valve from “pilot”
to “on”. On new installations, the pilot may be
extinguished when moving the knob from “pilot”
to “on” initially due to air inside the gas valve. If
this occurs, repeat the steps in section 5.5.
4) If the water inlet of the heater is connected to a
high pressure pump, start the pump and open
the trigger gun to allow water flow through the
heater. If the water source for the heater is not
a pump, open the source of water so that water
flows through the heater. In either case the
FLOW ON indicator will turn on once flow is
started. If an automatic vent damper is
installed, the the DAMPER-OPEN indicator will
turn on approximately 15 to 20 seconds after
the FLOW ON indicator is on. If a power venter
is installed, the POWER VENTER ON indicator
will turn on once air flow in the power venter is
proven.
5) With FLOW ON, THERMOSTAT, EXTERNAL
CONTROL, FLUE STATUS, DAMPER OPEN,
and POWER VENTER ON indicators all on, the
REQUEST FOR HEAT and HEAT ON
indicators will turn on. The main burners should
light within a few seconds. If the main burners
do not light, see section 11.0
TROUBLESHOOTING
6) Close the wash gun or shut off the water supply
to the heater. The FLOW ON indicator will turn
off and the main burners should go off within 10
seconds.
For complete shutdown of the main burners,
including the pilot, turn the switch or knob on the
combination gas valve to “off” position.
WARNING:
RISK OF INJECTION OR SEVERE INJURY. KEEP
CLEAR OF NOZZLE. DO NOT DIRECT DISCHARGE
STREAM AT PERSONS. THIS EQUIPMENT IS TO BE
USED ONLY BY TRAINED OPERATORS
ADVERTISSEMENT :
RISQUE D’INJECTION ET DE BLESSUREES
GRAVES. SE TENIR À L’ÉCART DU JET. NE PAS
DIRIGER LE JET DE SORTIE VERS D’AUTRES
PERSONNES. CONFIER L’UTILISATION DE CE
MATÉRIEL À UN OPÉRATEUR QUALIFIÉ.
WARNING:
IF YOU SMELL GAS, SHUT OFF THE GAS SUPPLY
TO THE APPLIANCE AND EXTINGUISH ANY OPEN
FLAME. IF THE ODOUR PERSISTS, CALL YOUR GAS
INSTALLER IMMEDIATELY.
ADVERTISSEMENT
:
SI UNE ODEUR DE GAZ EST DÉCELÉE, COUPER
L’ALIMENTATION EN GAZ DE L’APPAREIL ET
ÉTEINDRE TOUTES LES FLAMMES. SI L’ODEUR
PERSISTE, AVERTIR IMMÉDIATEMENT LE
FOURNISSEUR DE GAZ.