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MODCON VWH 850 HL
HEAT TRANSFER PRODUCTS MODCON VWH 850 HL Manuals
Manuals and User Guides for HEAT TRANSFER PRODUCTS MODCON VWH 850 HL. We have
1
HEAT TRANSFER PRODUCTS MODCON VWH 850 HL manual available for free PDF download: Installation & Maintenance
Heat Transfer MODCON VWH 850 HL Installation & Maintenance (80 pages)
GAS-FIRED HOT WATER SUPPLY BOILER
Brand:
Heat Transfer
| Category:
Boiler
| Size: 4.67 MB
Table of Contents
Table of Contents
3
Part 1: Product and Safety Information
5
Part 2: before You Start
7
Modcon Recovery Ratings
7
Modcon Vwh Recovery Ratings with Storage Tanks
7
What's in the Box
8
Optional Equipment
9
Part 3: Prepare Boiler Location
10
Boiler Location / Dimensions
10
Installations Must Comply with
12
Before Locating the Boiler
12
Clearances for Service Access
12
Exhaust Vent and Intake Air Vent
13
Prevent Combustion Air Contamination
13
When Removing a Boiler from an Existing Common Vent System
14
Part 4: Prepare Boiler
14
Part 5: Boiler Piping
15
Relief Valve
15
General Piping Information
16
System Water Piping Methods
16
Circulator Pumps
16
Installation of Flow Switch
17
Scalding
19
High Velocity Circulator Pump
21
Boiler Piping Details
22
Part 6: Venting, Combustion Air & Condensate Removal
29
Installing Exhaust Vent and Intake Air Vent
29
General
29
Approved Materials for Exhaust Vent and Intake Air Vent
29
Exhaust Vent and Intake Air Vent Pipe Location
31
Exhaust Vent and Intake Air Vent Sizing
35
Longer Vent Runs
35
Exhaust Vent and Intake Air Pipe Installation
35
Heater Removal from a Common Vent System
36
Diagrams for Sidewall Venting
37
Diagram for Vertical Venting
38
Part 7: Gas Piping
40
Gas Connection
40
Gas Piping
41
Gas Table
41
Check Inlet Gas Pressure
41
Dungs Gas Valve
42
Part 8: Field Wiring
45
Installation Must Comply with
45
Field Wiring Terminations
45
Field Wiring Considerations
45
Line Voltage Wiring for Modcon VWH
46
Alarm Connections
46
Low Voltage Connections for Standard Boiler
46
Tank Sensor or Mechanical Control
48
System/Pipe Sensor
48
Optional High Gas Pressure Switch
48
Optional Low Gas Pressure Switch
48
Flow Switch
48
Wiring of Cascade System Communication Bus
49
Modcon VWH Cascade Master Pump and Sensor Wiring
50
Modcon VWH Cascade Follower Pump and Sensor Wiring
51
Part 9. Start-Up Preparation
54
Check for Gas Leaks
54
Condensate Removal
54
Final Checks before Starting Boiler
54
Cascade System
54
Part 10. Start-Up Procedure
56
Operating Instructions
56
Adjusting the Operating Set Points of the VWH Display
56
Status Menu
57
Test Mode
58
Part 11: Start-Up Procedures for the Installer
58
Programming for the Installer
58
Program Access
58
Program Navigation
59
Part 12: Troubleshooting
61
Mod con Error Code
61
Boiler Error
61
Boiler Fault
61
Part 13: Maintenance
64
Maintenance Procedures
64
Combustion Chamber Coil Cleaning Instructions for the Mod con
65
Maintenance Procedure to Clean Heat Exchanger
66
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