
34
Fig. 43 — Typical Heat Exchanger Assembly
Burners and Igniters
MAIN BURNERS
To access the burner section, open the heater access door below
the indoor fan panel. At the beginning of each heating season, in-
spect for deterioration or blockage due to corrosion or other caus-
es. Observe the main burner flames and adjust, if necessary.
Flames should be conical in shape and enter the heat exchanger
tubes with minor impingement on sheet metal flame components.
ORIFICE PROJECTION
Refer to Fig. 44 for maximum projection dimension for orifice
face to manifold tube.
Fig. 44 — Orifice Projection
REMOVAL AND REPLACEMENT OF GAS TRAIN
See Fig. 38, 43, and 45.
1. Shut off gas using the manual shutoff switch located in the
gas supply line.
2. Turn the gas valve ON/OFF knob to the OFF position.
3. Shut off power to unit and install lockout tag.
4. Disconnect gas piping at unit gas valve.
5. Remove wires connected to gas valve. Mark each wire to
assist in re-connecting power to the gas valve.
BURNER A
SS
EMBLY
GA
S
VALVE
INDUCER FAN
MOTOR A
SS
EMBLY
VE
S
TIBULE PLATE
S
UPPORT IN
S
ULATION
A
SS
EMBLY
HEATER TUBE
A
SS
EMBLY
S
EAL
S
TRIP
S
(
S
PONGE RUBBER)
REGULATOR
GA
S
KET
REGULATOR
RETAINER
WIND CAP A
SS
EMBLY
(
S
HOWN INVERTED
A
S
S
HIPPED)
~
MOUNTING
S
CREW
S
(2)
CAUTION
EQUIPMENT DAMAGE HAZARD
Failure to follow this CAUTION can result in premature wear
and damage to equipment.
When working on gas train, do not hit or plug orifice spuds.
CAUTION
PERSONAL INJURY HAZARD
Failure to follow this caution can result in personal injury.
Disconnect all electrical power when servicing the gas train.
Apply appropriate lockout/tag-out procedures.
ORIFICE
1.00-in
(25.4 mm)
MANIFOLD
PIPE
Содержание 581J 17-28 Series
Страница 18: ...18 COOLING CHARGING CHARTS Fig 21 Cooling Charging Chart 15 Ton ...
Страница 19: ...19 Fig 22 Cooling Charging Chart 17 5 Ton ...
Страница 20: ...20 Fig 23 Cooling Charging Chart 20 Ton ...
Страница 21: ...21 Fig 24 Cooling Charging Chart 25 Ton ...
Страница 36: ...36 Fig 47 Unit Control Box IGC Location IGC Board IGC Board Side view Front view ...
Страница 39: ...39 Fig 50 Integrated Gas Control IGC Board RED LED STATUS ...
Страница 45: ...45 Fig 56 RTU Open Overlay for Economizer Wiring ...
Страница 46: ...46 Fig 57 VFD Overlay for W2770 Controller Wiring ...
Страница 84: ...84 Fig B 581J 17 28 Control Diagram 208 230 3 60 460 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 85: ...85 Fig C 581J 17 28 Power Diagram 208 230 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 86: ...86 Fig D 581J 17 28 Power Diagram 460 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 87: ...87 Fig E 581J 17 28 Power Diagram 575 3 60 APPENDIX D WIRING DIAGRAMS ...
Страница 88: ...88 Fig F 581J 17 28 Control Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 89: ...89 Fig G 581J 17 28 Power Diagram 208 230 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 90: ...90 Fig H 581J 17 28 Power Diagram 460 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 91: ...91 Fig I 581J 17 28 Power Diagram 575 3 60 with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...
Страница 92: ...92 Fig J RTU OPEN Wiring Diagram APPENDIX D WIRING DIAGRAMS ...
Страница 93: ...93 Fig K RTU OPEN Wiring Diagram with Perfect Humidity System APPENDIX D WIRING DIAGRAMS ...