E93.1601EN032C
MODELS VGH-299-CH, VGH-399-CH
and VGH-500-CH
HIGH EFFICIENCY CONDENSING GAS BOILER
QUICK CONTENTS
FULL TABLE OF CONTENTS ................................. 2
1.0 SAFETY GUIDELINES ........................................... 6
2.0 INTRODUCTION. ................................................... 8
3.0 TECHNICAL DATA .............................................................. 9
4.0 BOILER DIMENSIONS ............................................ 13
5.0 ACCESSORIES AND UNPACKING ......................... 16
6.0 INSTALLATION LOCATION ...................................... 17
7.0 CONNECTIONS ....................................................... 20
8.0 CIRCULATOR CHARACTERISTICS ....................... 29
9.0 FLUE GAS AND AIR SUPPLY SYSTEM ................ 32
10.0 CASCADING APPLIANCE .................................... 54
11.0 ELECTRICAL INSTALLATION .................................. 56
12.0 BOILER CONTROLLER AND DISPLAY ................... 64
13.0 TEMPERATURE PROTECTION ........................... 86
14.0 ERROR INFORMATION ............................................ 86
15.0 CASCADING SYSTEM SETUP ............................. 93
16.0 SYSTEM TEST ..................................................... 98
17.0 COMMISSIONING THE BOILER ........................... 99
18.0 ADJUSTING AND SETTING THE BOILER ......... 101
19.0 INSPECTION, MAINTENANCE AND SERVICE ... 108
20.0 USER INSTRUCTIONS ...................................... 118
21.0 INSTALLATION EXAMPLES ............................... 118
22.0 SPARE PARTS ................................................... 123
Heating Contractor
Boiler Model Number
Address
Boiler Serial Number
Phone Number
Installation Date
This manual must be left
with owner and must be
hung on or adjacent to
the boiler for reference.
INSTALLATION AND SERVICE MANUAL
- Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
California Proposition 65 Warning: This product contains chemicals known to the State
of California to cause cancer, birth defects, or other reproductive harm.
- WHAT TO DO IF YOU SMELL GAS
•
Do not try to light any appliance.
•
Do not touch any electrical switch; do not use
any phone in your building.
•
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s
instructions.
•
If you cannot reach your gas supplier, call the
fire department.
- Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
WARNING:
If the information in
this manual is not followed
exactly, a fire or explosion may
result causing property damage,
personal injury or loss of life.
Summary of Contents for VGH-299-CH
Page 6: ...E93 1601EN032 C VGH installation manual 6 1 SAFETY GUIDELINES ...
Page 59: ...E93 1601EN032 C VGH installation manual 59 Ladder Logic Diagram Figure 11 3 ...
Page 60: ...E93 1601EN032 C VGH installation manual 60 Electrical schematics Figure 11 4 ...
Page 61: ...E93 1601EN032 C VGH installation manual 61 Figure 11 5 ...
Page 123: ...E93 1601EN032 C VGH installation manual 123 22 SPARE PARTS Figure 22 1 ...
Page 124: ...E93 1601EN032 C VGH installation manual 124 Figure 22 2 ...
Page 127: ...E93 1601EN032 C VGH installation manual 127 ...