Figure iv, Gidm series – I.C.E. GIDM-325 User Manual

Page 21

Advertising
background image

BURNER
MOTOR

LOW & HIGH BUTTERFLY SETTING

SHORT CRANK ARM

GIDM GRAVITY VENTED F-400-33 BURNER

( DECREASE THE DISTANCE BETWEEN DRIVE ROD AND CENTER PIN).

3. TO INCREASE COMBUSTION AIR MOVE DRIVE ROD TOWARDS CENTER PIN

2. TO INCREASE EXHAUST MOVE DRIVE ROD TOWARD DAMPER PIN

1. INSTALL A MANOMETER ON SUCTION AT TEST PORT IN POP-UP DOOR.

(DECREASE THE DISTANCE BETWEEN DRIVE ROD AND CENTER PIN.)

A) INSURE THERE IS A NEGATIVE PRESSURE AT THAT POINT ON LOW

FIRE THROUGH TO HIGH FIRE. -.50 TO - .75 W.C. LOW FIRE AND

YOU MAY HAVE TO SPEED UP EXHAUST AND OR BURNER DAMPER TO

4. TO INSURE A NEGATIVE PRESSURE THROUGHOUT FULL MODULATION RANGE,

MATCH GAS FLOW TO THE BURNER.

MOVE DRIVE ROD CLOSER TO THE DRIVE PIN ON THE BUTTERFLY VALVE.

( THIS WILL REDUCE THE MOVEMENT OF THE BURNER DAMPER)

VALVE.

5. ADJUST LOW AND HIGH FIRE ON THE STOP SCREWS ON THE BUTTERFLY

NOTE:

THE MOTOR IS ALLOWED TO OVER RUN WITH THE SPRINGS LINKAGE SET THE
TRAVEL ON THE PENN JOHNSON MOTOR TO INSURE IT DOES NOT GO TO FAR

OR DAMAGE TO THE MOTOR COULD OCCUR.

OPEN AT SET SCREW.

1. THE ABOVE SETTING IS IN LOW FIRE POSITION.

3. TO DECREASE PRIMARY AIR ON HIGH FIRE MOVE

BUTTERFLY CRANK ARM DOWN CLOSER TO HORIZONTAL

2. THE PRIMARY AIR ON BURNER TO BE ONLY 1/2-1 TURN

POSITION.

BUTTERFLY VALVE ARM

BALL JOINT ABOUT 3/4
DOWN FROM PIN

PRIMARY AIR DAMPER

LONG CRANK ARM
ON BURNER

LINKAGE OPERATION (POWER VENT)

-.01 TO -.10 ON HIGH FIRE.

GIDM - LINKAGE SET-UP WITH POWER VENT

BUTTERFLY DAMPER PIN

LOW FIRE
SET SCREW

BUTTERFLY
DAMPER

ARM

BURNER
DAMPER

HIGH FIRE

TRAVEL

HIGH FIRE
SET SCREW

POP UP DOOR

PRESSURE

TEST PORT

DAMPER CENTER PIN

HIGH FIRE

TRAVEL

EXHAUST
BLOWER

JOB NO.

DRW. NO.

SCALE

REV

DATE

CHK. BY

ISSUED BY

DRAWN BY

TITLE

Rev By

Revision Description

Date

GIDM GRAVITY VENTED LINKAGE OPERATION
AND POWER VENT LINKAGE SET-UP

GIDM

SERIES

JV

JULY 1/98

1:1

FIG. IV

-

Advertising
This manual is related to the following products: