Thomas & Betts RZ-NA 441-OMS 用户手册
Page 1
FOR YOUR SAFETY
WARNING: The use and storage of gasoline or
other flammable vapors and liquids in the vicinity
of this appliance is hazardous.
other flammable vapors and liquids in the vicinity
of this appliance is hazardous.
If you smell gas:
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
1. Open windows.
2. Don't touch electrical switches.
3. Extinguish any open flame.
4. Immediately call your gas supplier.
WARNING: Improper installation, adjustment,
alteration, service, or maintenance can cause
property damage, injury or death. Read the
installation, operation, and maintenance
instructions thoroughly before installing or
servicing this equipment.
servicing this equipment.
Operating/Maintenance/Service
Instructions
The information in this manual applies to Model Series DV, di-
rect-fired heating/makeup air systems. As with any gas burning
equipment, regular maintenance procedures are required to en-
sure continued safety, reliability and efficiency of the installa-
tion.
If service is required, this system should be serviced only by a
qualified service person. Service information in this booklet is
intended as a guideline for a qualified gas-fired equipment ser-
vice person.
rect-fired heating/makeup air systems. As with any gas burning
equipment, regular maintenance procedures are required to en-
sure continued safety, reliability and efficiency of the installa-
tion.
If service is required, this system should be serviced only by a
qualified service person. Service information in this booklet is
intended as a guideline for a qualified gas-fired equipment ser-
vice person.
Page
MAINTENANCE
SECTION ...................... 2-4
Configuration ................................. 2
Maintenance Schedule ................... 2
Maintenance Schedule ................... 2
1A. Blower Bearings .............................. 3
1B. Blower Belts ................................... 3
2. Filters ................................................. 3
3. Manifold Gas Pressure ...................... 3
4. Air Pressure ....................................... 4
5. Circuit Indicator Board (check lights) 4
6. Main Burner and Pilot Assembly ...... 4
1B. Blower Belts ................................... 3
2. Filters ................................................. 3
3. Manifold Gas Pressure ...................... 3
4. Air Pressure ....................................... 4
5. Circuit Indicator Board (check lights) 4
6. Main Burner and Pilot Assembly ...... 4
OPERATION/SERVICE
SECTION ................... 5-15
Controls - Location ....................... 5
7. Electronic Circuit Board with
Diagnostic Lights.............................. 5
TABLE OF CONTENTS
KEEP THIS BOOKLET
FOR MAINTENANCE AND
SERVICE REFERENCE.
References: Installation Manual, Form RZ 441
Replacement Parts Manual, Form RZ 741
Mfg No. 161442
Applies to:
Model Series DV
INDOOR OR OUTDOOR, GAS,
DIRECT-FIRED, MAKEUP AIR/
HEATING SYSTEMS
(Specifications subject to change without notice.)
Operation/Maintenance/Service
Form RZ-NA 441-OMS
Page
8. Temperature Limit Safety Controls ... 5
•Manual Reset Limit Control ........... 5
•Emergency Cut Off Limit Control .. 6
•Emergency Cut Off Limit Control .. 6
9. Air Pressure Switches ........................ 6
•Low Air Flow Switch ...................... 6
•High Air Flow Switch ...................... 6
•Bypass Damper (Optional) Air
•High Air Flow Switch ...................... 6
•Bypass Damper (Optional) Air
Flow Switches ................................ 6
10. Ignition System ................................ 6
11. Gas Train Including Direct-Fired
11. Gas Train Including Direct-Fired
Burner, Gas Control Systems,
Manifold Arrangements and Gas
Pressure Switches ............................. 7
Manifold Arrangements and Gas
Pressure Switches ............................. 7
•Direct-Fired Burner ........................ 7
•Makeup Air Gas Control Systems .. 7
•Electronic Modulation Gas Control
•Makeup Air Gas Control Systems .. 7
•Electronic Modulation Gas Control
Options AG30, AG31, AG32,
AG33, AG35, AG36 ...................... 7
AG33, AG35, AG36 ...................... 7
•Electronic Modulation Gas Control
Option AG37 ................................. 7
Page
•Manifold Arrangements ................. 8
•Gas Pressure Switches .................... 8
•Gas Pressure Switches .................... 8
12. Outside Air Ambient Cutoff ............ 8
13. Door Switch ..................................... 9
14. Inlet Air Controls ............................ 9
13. Door Switch ..................................... 9
14. Inlet Air Controls ............................ 9
•Air Flow Dampers ........................... 9
•Damper Motor ................................. 9
•Potentiometer .................................. 9
•Pressure Null Switch ....................... 9
•Photohelic Pressure Switch ........... 10
•Damper Motor ................................. 9
•Potentiometer .................................. 9
•Pressure Null Switch ....................... 9
•Photohelic Pressure Switch ........... 10
15. Dirty Filter Switch ......................... 10
16. Photoelectric Smoke Detector ....... 10
17. Firestat ........................................... 10
18. Freezestat ....................................... 10
19. Troubleshooting ............................. 11
16. Photoelectric Smoke Detector ....... 10
17. Firestat ........................................... 10
18. Freezestat ....................................... 10
19. Troubleshooting ............................. 11
Chart 1 - General Troubleshooting
Guide (Check the diagnostic lights on
the circuit board)
Guide (Check the diagnostic lights on
the circuit board)
Index ................................................... 12
C E R T I F I E D