5
TRX Series II - Installation - Startup - Maintenance Instructions
Part 1 - General Safety Information 7
A. Operation and Installation Warnings 7
B. Improper Combustion 8
C. Gas 8
D. When Servicing the Boiler 8
E. Boiler System 8
F. CH and DHW Loop Water Chemistry Requirements 9
G. Freeze Protection 9
H. Water Temperature Adjustment and Scalding 10
I. High Elevation Installations 10
Part 2 - Before You Start 11
A. What’s in the Box 11
B. Optional Equipment 13
Part 3 - Prepare the Boiler for Installation 14
A. Locating the Boiler 14
B. Leveling 15
C. Clearances for Service Access 15
D. Wall Mounting Considerations 16
E. Wall Mounting Instructions 16
1. Mounting to a Concrete Wall 16
2. Mounting to a Wood Studded Wall 17
F. Residential Garage and Closet Installations 18
G. Exhaust Vent and Intake Pipe 18
1. Direct Vent of Exhaust and Intake 18
2. Power Venting, Indoor Combustion Air in Confined or
Unconfined Space 18
H. Carbon Monoxide Detectors 18
I. Prevent Combustion Air Contamination 19
J. Removing a Boiler from a Common Vent System 19
K. Technical Specifications 20
Part 4 - Water Piping 25
A. General Plumbing Information 25
B. Backflow Preventer 25
C. Expansion Tank 25
D. Piping the Boiler 25
E. Internal Circulation Pump 27
F. By-Pass Valve 27
G. CH and DHW Pressure Relief Valves 27
H. Air Elimination Device 29
I. Low Water Cut-Off (Field Supplied) 29
J. Applications* 29
Part 5 - Venting 36
A. General 36
B. Approved Materials for Exhaust Vent and Intake Pipe 37
C. Additional Requirements for Installation in Canada 37
D. Exhaust Vent and Intake Pipe Location 38
E. Exhaust Vent and Intake Pipe Sizing 39
F. Tightening Boiler Collar to Exhaust Vent and Intake Pipe 39
G. Exhaust Vent and Intake Pipe Installation 41
H. Applications 42
1. Direct Vent Installation of Exhaust and Intake 42
2. Venting Through an Existing System 48
3. Power Venting, Indoor Combustion Air in Confined or
Unconfined Space 49
Part 6 - Installing the Condensate Drain 50
Part 7 - Connecting Electrical Service 52
A. Wiring 52
1. Removing the Power Cord (To Hard Wire the Boiler) 52
2. Connecting Power (120V) for DHW and CH Circulators 53
3. Low Voltage Wiring Connections 53
4. Room Thermostat Wiring Connections 54
5. Outdoor Sensor Connections 54
6. Aquastat (Default) and Tank Sensor (Optional)
Connections (non-Combi Models) 54
B. Internal Wiring Details 55
Part 8 - Gas Connections 59
A. Gas Pipe Sizing Tables 59
1. Gas Pipe Sizing 59
2. Natural Gas Pipe Sizing 59
3. LP (Liquid Propane) Gas Pipe Sizing 59
B. Gas Connection Requirements 59
C. Additional Precaution for Excess Flow Valve (EFV) 60
D. Checking Gas Pressure at the Boiler for Proper
Operation 60
Part 9 - Controls 61
A. Control Overview 61
B. Display Overview 61
C. Display - Home Page 62
D. Main Menu 63
E. Setup wizard 64
F. Boiler Details 65
G. User Menu 66
1. Screen settings 66
2. Time & Date 67
3. CH Setup 67
4. DHW Setup 68
5. Operating Mode 69
6. Time Program 70
H. Tech Menu 74
1. CH Setup 74
2. DHW Setup 77
3. Cascade Setup 78
4. Restore/backup 78
5. BMS Controls 79
6. Complete menu 80
6a. Comple menu structure 80
6b .Complete Menu Parameters 81
7. PCB Replacement 88
I. Test Mode 89
1. Burner Test 89
2. Output Test 89
3. Air Purge Function 89
J. Connectivit y 90
K. Diagnostics 91
Table of Contents
To Next Page
Loading...
