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2 maximum output calibration, Modulex ext – AERCO Modulex EXT 1530 - 3060 User Manual

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MODULEX EXT

1530, 1912, 2295, 2677, 3060 Boilers

Installation, Operation & Maintenance Manual























Figure 3-28: Location of Minimum and Maximum Adjustments (Top View)

3.33.2 Maximum Output Calibration

After installing the gas analyzer probe (Figure 3-27), refer to Figure 3-28 to locate the gas

valves and the Maximum Gas Adjustment screw (A) on each valve. Follow the instructions

below to set the maximum gas output level for each valve.

Adjusting the Maximum (A) Gas Output Setting

1. Remove the cap of the combustion gases sampling point (Figure 3-27) and connect a

suitable gas analyzer.

2. Operate the burner to a minimum power following the procedure described in Section 3.34

(Figure 3-30) ‘’Sweeper’’ function (CASCADE MAN 100%).

3. Check that the CO

2

values are within the values indicated in Table 3-6, below.

4. If necessary correct the value by turning the adjustment screw “A” in a CLOCKWISE

direction to decrease the value or ANTICLOCKWISE to increase the value.

5. Repeat the adjustment for all gas valves in the boiler.

A

Maximum

Output Adjust

B

BOILER

TOP VIEW

REAR

FRONT

Minimum

Output Adjust

B

A

Page 62 of 138

AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913

OMM-0095_0E

12/01/14

Phone: 800-526-0288

GF-139