5
Table of Contents
Part 1 - General Safety Information
6
A. Operation and Installation Warnings
6
B. Improper Combustion
7
C. Gas
7
D. When Servicing the Boiler
7
E. Boiler System
7
F. CH and DHW Loop Water Chemistry Requirements
8
G. Freeze Protection
8
H. Water Temperature Adjustment and Scalding
9
I. High Elevation Installations
9
Part 2 - Before You Start
10
A. What’s in the Box
10
B. Optional Equipment
11
Part 3 - Prepare the Boiler for Installation
12
A. Locating the Boiler
12
B. Leveling
13
C. Clearances for Service Access
13
D. Wall Mounting Considerations
14
E. Wall Mounting Instructions
14
1. Mounting to a Concrete Wall
14
2. Mounting to a Wood Studded Wall
14
F. Residential Garage and Closet Installations
15
G. Exhaust Vent and Intake Pipe
15
1. Direct Vent of Exhaust and Intake
15
2. Power Venting, Indoor Combustion Air in Confined or Unconfined Space
15
H. Carbon Monoxide Detectors
15
I. Prevent Combustion Air Contamination
16
J. Removing a Boiler from a Common Vent System
16
K. Technical Specifications
17
Part 4 - Water Piping
21
A. General Plumbing Information
21
B. Backflow Preventer
21
C. Expansion Tank
21
D. Piping the Boiler
21
E. Internal Circulation Pump
23
F. CH and DHW Pressure Relief Valves
24
G. Air Elimination Device
25
H. Low Water Cut-Off (Field Supplied)
25
I. Applications*
25
J. Floor Drying Function
32
Part 5 - Venting
33
A. General
33
B. Approved Materials for Exhaust Vent and Intake Pipe
34
C. Additional Requirements for Installation in Canada
34
D. Exhaust Vent and Intake Pipe Location
35
E. Exhaust Vent and Intake Pipe Sizing
36
F. Tightening Boiler Collar to Exhaust Vent and Intake Pipe
36
G. Exhaust Vent and Intake Pipe Installation
36
H. Applications
39
1. Direct Vent Installation of Exhaust and Intake
39
2. Venting Through an Existing System
45
3. Power Venting, Indoor Combustion Air in Confined or Unconfined Space
46
Part 6 - Installing the Condensate Drain
47
Part 7 - Connecting Electrical Service
48
A. Wiring
48
1. Connecting Power (120V) for DHW and CH Circulators
48
2. Low Voltage Wiring Connections
48
3. Room Thermostat Wiring Connections
49
4. Outdoor Sensor Connections
49
5. Aquastat (Default) and Tank Sensor (Optional) Connections (non-Combi
Models)
49
B. Internal Wiring Details
50
Part 8 - Gas Connections
54
A. Gas Pipe Sizing Tables
54
1. Gas Pipe Sizing
54
2. Natural Gas Pipe Sizing
54
3. LP (Liquid Propane) Gas Pipe Sizing
54
B. Gas Connection Requirements
54
C. Additional Precaution for Excess Flow Valve (EFV)
55
D. Checking Gas Pressure at the Boiler for Proper Operation
55
Part 9 - Controls
56
A. Control and Display Overview
56
B. Ignition Procedure
57
C. Central Heating (CH) Temperature Adjustment
57
D. Domestic Hot Water (DHW) Temperature Adjustment
57
E. User Menu
58
F. INFO Menu
59
G . Date and Time (If ITIME is set to OFF)
59
H. Automatic CH Temperature Control (AUTO)
60
I. Type of Temperature Control
61
J. Slope of Outdoor Reset Curve
61
L. Auto Boost
62
K. Parallel Shift of Reset Curve
62
M. Room Temperature Day /Night
63
N. Time Programs – Heating Schedule
63
O. Automatic Summer / Winter Changeover
63
P. Technical Menu - Access and Navigation
64
Q. Technical Menu - Menu Structure
65
R. Technical Menu - Complete Menu
66
Part 10 - Start-Up Preparation
74
A. Check / Control Water Chemistry
74
B. Check for Gas Leaks
74
C. Freeze Protection (When Used)
74
D. System Water Fill, Purge, and Test
75
E. Purge Air from DHW System
75
F. Check Thermostat Circuit(s)
75
G. Condensate Removal
75
Part 11 - Start-Up
77
A. First Ignition
77
B. Combustion Checking Procedure
78
C. Checking Combustion Parameters
80
D. Converting the Appliance from Natural Gas to
80
Propane Operation
80
Part 12 - Installation Checklist
81
Part 13 - Troubleshooting
83
A. Boiler Protection Devices
83
1. Blocking Error
83
2. Lockout Error
83
3. Malfunction Warning
83
B. Boiler Error Codes
84
Part 14 - Maintenance
88
A. Procedures
88
B. Maintenance That May be Performed by the User
88
C. Maintenance Only to be Performed by a Qualified Service Techni-
cian
89
D. Replacing Components
92
E. After Maintenance is Complete
94
Part 15 - Maintenance Report
95
Part 16 - Shutdown
97
A. Shutdown Procedure
97
B. Failure to Operate
97
C. Important
97
Maintenance Notes
98
Customer Installation Record Form
99
Содержание TRX150
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