Dunkirk DWB Series - Manual

DOMESTIC HOT WATER SENSOR KIT
INSTRUCTIONS FOR CHB-100, CHB-130, CHB-150
Kit #550002958
WARNING
Fire, explosion, asphyxiation and electrical shock
hazard. Improper installation could result in death or
serious injury. Read this instruction and understand
all requirements, including requirements of authority
having jurisdiction, before beginning installation.
Installation not complete until appliance operation
verified per Installation, Operation & Maintenance
Manual provided with boiler.
!
Sensor can be used on a standard Indirect Hot Water
tank. When it is connected to the boiler, sensor will control
Indirect Tank temperature.
1. Follow instructions To TURN OFF GAS TO APPLIANCE
found on Operating Instructions label on boiler or in
Installation, Operation & Maintenance Manual. Verify all
electrical power to boiler is turned off.
WARNING
Electrical shock hazard. Turn OFF electrical power
supply at service panel.
!
2. Remove front jacket.
WARNING
Burn hazard. Verify heat exchanger has cooled or use
appropriate personal protection equipment.
!
3. Before inserting sensor into Indirect tank well,
thoroughly coat sensor with Thermopaste supplied with
sensor kit.
4. Slide sensor into well until it bottoms out. See figure 1.
5. Secure sensor wire to well with included clip. See
Figures 1 and 2.
6. Route sensor wire to boiler low voltage terminal
block. Remove the two resistors on terminals 7 & 8 of
8-pin terminal strip, item #155. See Figure 4 - wiring
diagram.
7. Install sensor wires onto terminals 7 & 8. See Figures 5
and 6.
8. Secure sensor wire.
9. Restore power to boiler. Boiler will automatically
recognize the sensor.
P/N 240010745 Rev. C [05/04/2015]
Figure 1 - Slide Sensor Into well of Indirect Tank
Kit installation shall be completed by qualified agency.
Figure 2 - Secure Sensor Wire to Well With Clip
Figure 3 - Sensor Wire Secured to Well With Clip