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Warning – Dunkirk Helix VLT Vertical Laser Tube, Wall Hung Modulating Condensing Boiler User Manual

Page 40

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40

FIGURE 9-5 Combustion Analyzer Port -

050/075/100/150/200

Flame

Flame

Burner

9.6 Perform CSD-1 Compliance Test (see

paragraph 2.4 page 6)

Verify operation of boiler safety control operation with

regard to no flow conditions as follows:

1.

Turn off boiler using boiler service switch.

2.

Disable primary boiler pump. Disconnect multi pin

connector J7 from control module. See figure 9-8.

3.

Disable secondary system pumps attached to

system.

4.

Establish call for heat. Jump CHW T-T terminals

on low voltage terminal block. Turn on boiler using

boiler service switch.

5.

Boiler will fire. Based on natural convection within

boiler, boiler will either:

A. Lockout A-06 "Safety Relay Error". Requires

manual reset of control module. Press reset

button on User interface. See 9.3 Program Boiler

Control .

OR

B. Shut off burner E40 "Return Water Temp". This

is a soft lockout. When water temperature drops

below limit boiler will automatically refire then

Lockout A-06 requiring manual reset of control

module. Press Reset button on User Interface.

OR

C. Shut off burner E39 "Flue Temperature Sensor".

This is a soft lockout. When flue sensor drops

below limit, boiler will automatically refire then

Lockout A-06 requiring manual reset of control

module. Press Reset button on User Interface.

6.

After safety operation is verified, turn off boiler via

service switch. Remove jumper in T-T. Replace J7

connector into control module, enable secondary

pump operation, turn service switch on and restart

system to verify operation.

Combustion

Analyzer Port

WARNING

Asphyxiation hazard. Carbon monoxide is odorless,

tasteless, clear colorless gas, which is highly toxic.

Verify cap is firmly placed on combustion analyzer

port to prevent CO emission. Failure to do so could

result in death or serious injury.

!

FIGURE 9-7 Burner Flame

Look for BLUE flame with slight

YELLOW tips evenly spaced

around burner

FIGURE 9-6 Combustion Analyzer Port - 299

Combustion

Analyzer Port

9 - START UP PROCEDURE