WHL-053 Rev. 00 Rel. 003 Date 7.21.17
4
D. Exhaust Vent and Intake Pipe Location
25
E. Exhaust Vent and Intake Pipe Sizing
26
F. Longer Vent Runs
26
G. Exhaust Vent and Intake Pipe Installation
26
H. Applications
27
1. Direct Vent Installation of Exhaust and Intake
27
2. Venting Through an Existing System
29
3. Power Venting, Indoor Combustion
Air in Confined or Unconfined Space
30
I. Condensate Removal System
32
Part 6 - Wiring
33
A. Installation Must Comply With
33
B. Field Wiring Terminations
33
C. Field Wiring
33
D. Line Voltage Wiring for Standard Boiler
33
E. Alarm Connections
33
F. Low Voltage Connections for Standard Boiler
33
G. Tank Sensor or Mechanical Control
33
H. System / Pipe Sensor
34
I. Optional 0-10 Volt Building Control Signal
34
J. Optional UL353 Low Water Cut-Off Interface Kit
34
K. Wiring of Cascade System Communication Bus
34
L. Cascade Master Pump and Sensor Wiring
35
M. Cascade Follower Pump and Sensor Wiring
35
N. Variable Speed Pumping
35
Part 7 - Gas Connections
38
A. Gas Piping
38
B. Check Inlet Gas Pressure
39
C. Boiler Gas Valve
40
Part 8 - Start-Up Preparation
41
A. Check / Control Water Chemistry
41
B. Check for Gas Leaks
41
C. Condensate Removal
41
D. Final Checks Before Starting Boiler
41
E. Setting Up a Single Boiler
42
F. Setting Up a Cascaded System
42
G. Lockout Condition
42
H. Cascade System Programming
42
Part 9 - Start-Up Procedure
43
A. Control Overview
43
B. Navigation of the Display
43
C. Operating Instructions
44
D. Programming Boiler Settings
44
E. Programming the System Setting
45
F. System Setting Program Navigation
45
G. Resetting the Maintenance Schedule
47
Part 10 - Start-Up Procedures for the Installer
47
A. Boiler Control Status Menu
47
B. Cascade Menu
50
C. Boiler Test Mode
51
Part 11 - Troubleshooting
51
A. Boiler Error and Fault Codes
51
B. Boiler Error
51
C. Boiler Fault
51
D. User Interface Display
52
Part 12 - Maintenance
57
A. Procedures
57
B. Combustion Chamber Coil Cleaning Instructions
57
C. Cleaning Water Side of Heat Exchanger
58
D. Maintaining the Condensate System
58
Part 13 - Installation Checklist
64
Part 14 - Maintenance Report
64
Limited Warranty
66
Maintenance Notes
68
Customer Installation Record Form
69
Table of Contents
Part 1 - General Safety Information
5
A. Improper Combustion
5
B. Gas
5
C. When Servicing the Water Heating System
5
D. Boiler Water
5
E. Freeze Protection
5
F. Water Temperature Adjustment
6
G. High Elevation Installations
6
Part 2 - Before You Start
7
A. What’s in the Box
8
B. How the Boiler Operates
8
C. Optional Equipment
8
Part 3 - Prepare the Boiler
9
A. Locating the Boiler
9
B. Flooring
10
C. Leveling
10
D. Clearances for Service Access
10
E. Residential Garage and Closet Installations
10
F. Exhaust Vent and Intake Pipe
11
1. Direct Vent of Exhaust and Intake
11
2. Power Venting, Indoor Combustion Air in Confined or
Unconfined Space
11
G. Carbon Monoxide Detectors
12
H. Prevent Combustion Air Contamination
12
I. Removing a Boiler from a Common Vent System
12
J. Water Chemistry Requirements*
13
Part 4 - Piping
16
A. General Plumbing Information
16
B. Relief Valve
16
C. Backflow Preventer
16
D. Potable Expansion Tank
16
E. Circulators
17
F. Flow Switch Installation
17
G. Scalding
18
H. High Velocity Circulator Pump
18
I. Plumbing
20
J. Applications
21
Part 5 - Venting and Condensate Removal
23
A. General
23
B. Approved Materials for Exhaust Vent and Intake Pipe
24
C. Additional Requirements for Installation in Canada
24
The CSD-1 ASME Code, Section CW-400 requires that hot water
heating and supply boilers have a) a UL 353 temperature control
device, b) at least one (1) temperature-actuated control to shut
off the fuel supply when system water reaches a preset operating
temperature, c) a high temperature limit control that prevents
the water temperature from exceeding the maximum allowable
temperature by causing a safety shutdown and lockout, and d) its
own sensing element and operating switch.
The temperature control system integrated into the 926 control
provided with this heating appliance complies with the requirements
of CSD-1 Section CW-400 as a temperature operation control. The
control monitors the temperature difference between the inlet
and the outlet sensor, which is affected by boiler water flow. If this
temperature difference exceeds 55°F (typically because of low water
flow or very low heat load), the control will reduce the maximum fan
speed. If the temperature difference exceeds 60°F, the control will
effectively sense there is little or no water flow or heat load and shut
the boiler down. The controller will restart automatically once the
temperature difference has dropped below 55°F and the minimum
off time (anti-cycle time) has expired. In addition, if the control
senses that the outlet water temperature has reached 210°F, the
boiler is put into a hard lockout and requires manual reset to restart.
Содержание 220VWH
Страница 36: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 36 Figure 25 Internal Connection Diagram...
Страница 57: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 57 Figure 29 Condensate Detail...
Страница 58: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 58 Figure 30 Combustion System Replacement Parts 220kBTU Model...
Страница 59: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 59 Figure 31 Combustion System Replacement Parts 299 399kBTU Models...
Страница 60: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 60 Figure 32 Replacement Parts All Models...
Страница 66: ...WHL 053 Rev 00 Rel 003 Date 7 21 17 66 Maintenance Notes...
