Warranty
Table Of Contents
- Part 1 - General Safety Information
- Part 2 - Before You Start
- Part 3 - Prepare the Appliance Installation
- A. Locating the Appliance
- B. Leveling
- C. Clearances for Service Access
- D. Residential Garage and Closet Installations
- E. Exhaust Vent and Intake Pipe
- F. Carbon Monoxide Detectors
- G. Prevent Combustion Air Contamination
- H. Removing a Appliance from a Common Vent System
- I. Technical Specifications
- J. Wall-Mounting (Wall Mount Models Only)
- K. Flow Restrictor
- Part 4 - Water Piping
- 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 Appliance Collar to Exhaust Vent and Intake Pipe
- G. Exhaust Vent and Intake Pipe Installation
- H. Applications
- Part 6 - Installing the Condensate Drain
- Part 7 - Connecting Electrical Service
- Part 8 - Gas Connections
- Part 9 - Controls
- Part 10 - Troubleshooting
- Part 11 - Start-Up
- Part 12 - Installation Checklist
- Part 13 - Maintenance
- Part 14 - Moving Adapters from Left to Right (Floor Models)
- Part 15 - Replacement Parts
43
whl-648 Rev. 000 Rel. 009 Date 1.4.19
Connector
Description HT SELV
No. of Location Pin Board Silk
CN7
LWD1140-14
1
F.S Flame Sensor
SELV (5V)
8
2
OP.S Operating Water Temperature Sensor
9
3
DH.S DHW Temperature Sensor
10
4
I.S NOT USED
11
5
BG.S Exhaust Temperature Sensor
12
6
ST.S NOT USED
13
7
SP.S Overheat Temperature Sensor
14
CN14
SMW250-09
1
DHM
GND
SELV (14V)
2 DHM Stepper Motor Position
3 VDD
4 DHM Stepper Motor Coil X Phase
5 DHM Stepper Motor Coil Y Phase
6 VDD
7 DHW Stepper Motor Coil / X Phase
8
DHM Power IWM Stepper Motor Coil
/ Y Phase
9 NOT USED -
CN3
SMW250-06
4
FLUX1
VCC
SELV (5V)
5 Water Flow Sensor
6 GND
CN5
SMW250-10
1
RPM
Fan RPM Check
2 GND
Table 22 - Boiler Wiring 2
Figure 35 - Terminal Block Wiring Detail