Ventilation; Start-Up Procedure; Operator Maintenance Instructions - Mr. Heater MH40NG Guide D'utilisation Et Instructions De Fonctionnement

MAXIMUM­
WIRE LENGTH­
SIZES 2­WIRE­
CABLE
NO. 18 15­FEET
NO. 16 30­FEET
NO. 14 50­FEET
Thermostat­Wires
POWERPILE­GAS­VALVE

9. VENTILATION

a.­­ The­minimum­intake­and­exhaust­air­openings­shall­provide­
for­not­less­than­400­CFM­for­every­100,000­BTU­input­except­
that the infiltration area may be included in the intake area.
b.­­ Where­natural­(gravity)­ventilation­is­provided­for­exhaust,­the­
openings­must­be­distributed­above­the­heaters­(preferably­at­
the­peak­of­the­roof)­and­the­areas­of­openings­shall­not­be­
less­than­300­square­inches­for­every­100,000­BTU­input.

10. START-UP PROCEDURE

OPEN­THE­GAS­SUPPLY­VALVE­OR­VALVES.
Figure 5. Thermostate controls
Set­the­thermostat­to­the­OFF­position.­See­Figure­5.­If­the­
manual­gas­control­knob­on­the­gas­valve­is­not­in­the­OFF­
position,­partially­depress­the­knob­and­rotate­to­the­OFF­position.­
See­Figure­6.
Wait­5­minutes­to­allow­gas­that­may­have­accumulated­in­the­
main­burner­to­escape­(especially­important­after­installation).
Turn­the­manual­gas­control­knob­to­the­PILOT­position.
Depress­the­manual­gas­control­knob.­Using­a­match,­light­the­
pilot­light.­See­Figure­6.­Hold­the­knob­down­for­approximately­
30­seconds­to­allow­any­air­in­gas­lines­to­pass­through­pilot­and,­
CAUTION:
Never­connect­powerpile­gas­
valve­or­thermostat­to­line­voltage­
or a transformer
POWERPILE­GENERATOR
Factory­Wired
Model # MH40NG/LP
MANUAL­GAS­
CONTROL­KNOB
WRENCH­
BOSS
GAS­INLET
PILOTSTAT­POWER­
Figure 6. Gas Valve
Components
once the pilot is lit, allow the thermocouple to heat up enough to
activate­the­safety­valve­in­an­open­position.
Release manual gas control knob and turn to ON. Reset
thermostat to desired temperature.
NOTE:
During­the­initial­startup­of­MR.­HEATER­an­odor­and,­perhaps,­
some­vapor­will­come­from­the­heater.­This­is­the­gasket­binding­
material­emitting­this­odor­and/or­vapor.­After­approximately­20­
minutes this odor will disappear and not occur again.
11. SHUTDOWN
1. Turn­thermostat­to­OFF.
2. Turn­manual­gas­control­knob­on­gas­valve­to­PILOT­position.
3.­ Partially­depress­knob­and­rotate­to­the­OFF­position.
4. Close­gas­supply­valves.
12. OPERATOR MAINTENANCE
INSTRUCTIONS
1. TROUBLESHOOTING
a.­­ Table­4­lists­the­common­malfunctions­which­you­may­find­
during the operation or maintenance of your heater.
b.­­ For­additional­information­refer­to­Honeywell­Field­Bulletin­
enclosed in the heater carton.
c.­­ In­the­event,­results­cannot­be­obtained­after­performing­all­
listed solutions, call your Mr. Heater dealer, or the factory
customer­service­department­at­1-800-251-0001.
2. ADJUSTING THE PILOT FLAME
The­pilot­flame­should­envelope­3/8­to­½­in.­(10­to­13mm)­of­the­
PROPER­FLAME­ADJUSTMENT
Figure 7. Proper flame adjustment
5
Installation Instructions and Owner's Manual
PRESSURE­REGULATOR­
ADJUSTMENT
STANDARD­
PRESSURE­
REGULATOR
(Incoming pressure
not exceed 13" W.C.)
PILOT­GAS­
OUTLET­
(PRESSURE­
TAPPING­
DIRECTLY­
PILOT­FLOW­
BENEATH)
UNIT ADJUSTING­
SCREW­
(BENEATH­
COVER­SCREW)
3/8­TO­½­INCH­
(10­TO­13­MILLIMETERS)
THERMOCOUPLE