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Boiler
TRX II Series
Installation start-up maintenance
Table Of Contents - NTI TRX II Series Installation Start-Up Maintenance
Residential condensing gas boiler
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Also See for TRX II Series
:
Installation start-up maintenance
(132 pages)
,
Installation quick manual
(20 pages)
,
Conversion instructions
(12 pages)
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Contents
Table of Contents
Troubleshooting
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TABLE OF CONTENTS
Part 1 - General Safety Information
A. Operation and Installation Warnings
B. Improper Combustion
C. Gas
D. When Servicing the Boiler
E. Boiler System
F. CH and DHW Loop Water Chemistry Requirements
G. Freeze Protection
H. Water Temperature Adjustment and Scalding
I. High Elevation Installations
Part 2 - Before You Start
A. What's in the Box
B. Optional Equipment
Part 3 - Prepare the Boiler for Installation
A. Locating the Boiler
B. Leveling
C. Clearances for Service Access
D. Wall Mounting Considerations
E. Wall Mounting Instructions
1. Mounting to a Concrete Wall
2. Mounting to a Wood Studded Wall
F. Residential Garage and Closet Installations
G. Exhaust Vent and Intake Pipe
1. Direct Vent of Exhaust and Intake
2. Power Venting, Indoor Combustion Air in Confined
or Unconfined Space
H. Carbon Monoxide Detectors
I. Prevent Combustion Air Contamination
J. Removing a Boiler from a Common Vent System
K. Technical Specifications
Part 4 - Water Piping
A. General Plumbing Information
B. Backflow Preventer
C. Expansion Tank
D. Piping the Boiler
E. Internal Circulation Pump
F. CH and DHW Pressure Relief Valves
G. Air Elimination Device
H. Low Water Cut-Off (Field Supplied)
I. Applications
*
Part 5 - Venting
A. General
B. Approved Materials for Exhaust Vent and Intake Pipe
C. Additional Requirements for Installation in Canada
D. Exhaust Vent and Intake Pipe Location
E. Exhaust Vent and Intake Pipe Sizing
F. Tightening Boiler Collar to Exhaust Vent and Intake Pipe
G. Exhaust Vent and Intake Pipe Installation
H. Applications
1. Direct Vent Installation of Exhaust and Intake
2. Venting Through an Existing System
3. Power Venting, Indoor Combustion Air in Confined
or Unconfined Space
Part 6 - Installing the Condensate Drain
Part 7 - Connecting Electrical Service
A. Wiring
1. Connecting Power (120V) for DHW and CH Circulators
2. Low Voltage Wiring Connections
3. Room Thermostat Wiring Connections
4. Outdoor Sensor Connections
5. Aquastat (Default) and Tank Sensor (Optional)
Connections (non-Combi Models)
B. Internal Wiring Details
TRX Series 2 - Installation - Startup - Maintenance Instructions
Part 8 - Gas Connections
A. Gas Pipe Sizing Tables
6
1. Gas Pipe Sizing
6
2. Natural Gas Pipe Sizing
7
3. LP (Liquid Propane) Gas Pipe Sizing
7
B. Gas Connection Requirements
7
C. Additional Precaution for Excess Flow Valve (EFV)
7
D. Checking Gas Pressure at the Boiler for Proper Operation
8
Part 9 - Controls
8
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A. Control Overview
9
B. Display Overview
C. Display - Boiler Status
10
D. Main Menu
10
E. Setup Wizard
11
F. Boiler Details
12
G. User Menu
12
H. Tech Menu
13
I. Test Mode
13
J. Connectivity
14
K. Diagnostics
14
Part 10 - Start-Up Preparation
14
A. Check / Control Water Chemistry
15
B. Check for Gas Leaks
15
C. Freeze Protection (When Used)
15
D. System Water Fill, Purge, and Test
15
E. Purge Air from DHW System
F. Check Thermostat Circuit(s)
15
G. Condensate Removal
16
Part 11 - Start-Up
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A. First Ignition
18
B. Combustion Checking Procedure
C. Converting the Appliance from Natural Gas to
22
Propane Operation
22
Part 12 - Installation Checklist
22
22
Part 13 - Troubleshooting
23
A. Boiler Protection Devices
24
1. Blocking Error
24
2. Lockout Error
25
3. Malfunction Warning
25
B. Boiler Error Codes
25
Part 14 - Maintenance
33
A. Procedures
33
B. Maintenance That May be Performed by the User
34
C. Maintenance Only to be Performed by a Qualified Service
34
Technician
35
D. Replacing Components
36
E. After Maintenance is Complete
36
Part 15 - Maintenance Report
37
Part 16 - Shutdown
38
A. Shutdown Procedure
38
B. Failure to Operate
44
C. Important
Maintenance Notes
45
Customer Installation Record Form
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This manual is also suitable for:
Trx150
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Trx199c
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