Step 6a, Adjust the burner using test instruments, Verify operation – Carlin 702G/O Mass Code Supp. User Manual

Page 6

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Model 702G/O Advanced gas/oil burners — Supplement 1 – Massachusetts Code

Carlin part number MN702GOM Rev. 03/12/08

– 6 –

Where appliance instructions differ from this manual, follow the appliance instructions.

Add to the Instruction manual content:

This page adds to Instruction manual page 23.

Step 6a

(firing on oil and on gas)

Verify operation

Perform all of the checkout procedures given in Step 6 of

the burner manual. In addition, verify operation of the gas
pressure switches as described below.

Verify high gas pressure switch operation

Cycle the burner off with the appliance controls and turn off power to the

appliance/burner.

Attach a manometer to the manifold-side manual gas valve test port.

Turn on power and cycle the burner on with the appliance controls.

Measure the manifold gas pressure with the manometer.

Set the high gas pressure switch to a pressure less than actual manifold

pressure. The high gas pressure switch should shut the burner down.
Replace the switch if necessary.

Turn off power to the appliance/burner; remove the manometer and replace

the plug in the gas valve test port. Reset switch.

Verify low gas pressure switch operation

Cycle the burner off with the appliance controls and turn off power to the

appliance/burner.

Close the main manual gas valve.

Cycle the burner on.

The low gas pressure switch should shut the burner down. Replace the

switch if necessary.

Turn off power to the appliance/burner.

Open the main manual gas valve.

Reset low gas pressure switch.

8. Adjust the burner using test instruments

(continued)

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