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11

Rollout Switch

Burner Bracket

A07874

Fig. 12 -- Single--Stage Burner Bracket

A07890

Fig. 13 -- Single--Stage Igniter, Flame Sensor, Orifice/Main

Burner Relationship

21. Verify igniter, ignitor, flame sensor, orifice/main burner

relationship prior to completing conversion. (See Fig. 13.)

Partially slide burner rack assembly into unit.

22. Disconnect the orange wire from the combustion air

pressure switch and connect it to the orange wire on the low

gas pressure switch (LGPS) equipped with a 1/4 in. male
quick--connect

terminal. The low gas pressure switch

should have one unconnected orange wire remaining.
Connect this wire to the vacant terminal on the combustion
air pressure switch (see Fig. 16).

REGULATOR 

 ADJUST

SCREW

REGULATOR SPRING
(PROPANE - WHITE
NATURAL - SILVER)

GAS PRESSURE 
REGULATOR 
ADJUSTMENT

MANIFOLD 
PRESSURE TAP

INLET 
PRESSURE TAP

ON/OFF SWITCH

COVER SCREW

PLASTIC

1/2" NPT INLET

1/2" NPT OUTLET

A07808

Fig. 14 -- Single--Stage Gas Valve

CPL

P

CONV

Summary of Contents for CPLPCONV013A00

Page 1: ...and in instructions or manu als be alert to the potential for personal injury Understand these signal words DANGER WARNING and CAUTION These words are used with the safety alert symbol DANGER identifi...

Page 2: ...MUST be shut off before disconnecting electrical power and proceeding with conversion WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before in...

Page 3: ...er access to the burner assembly The bracket may be removed by removing 2 screws on the control side and sliding the bracket forward bottom first If the fan partition bracket was removed slide bracket...

Page 4: ...e four screws saved from item 11 15 Remove the plug on the inlet end of the gas valve using a 3 16 in hex wrench 16 Install the 1 8 in NPT x 3 4 in 19 mm close pipe nipple where the plug was removed s...

Page 5: ...re switch is a safety device used to guard against adverse burner operating characteristics that can result from low gas supply pressure Switch opens at not less than 6 5 IN W C and closes at not grea...

Page 6: ...E ORIFICE 2 FLAME SENSOR MANIFOLD 40 000 BTUH UNITS CLOSED END PIPE PLUG CLOSED END BURNER 3 BURNER RACK SPARKER FLAME SENSOR ORIFICE 3 MANIFOLD 60 000 BTUH PIPE PLUG CLOSED END GAS VALVE LO HI O FF O...

Page 7: ...igniter is de energized and a 2 sec flame proving period begins NOTE The unit always lights on high speed inducer and low stage gas valve operation Flame Proving When the burner flame is proved at the...

Page 8: ...ks to check all connections A fire or explosion could result causing property damage personal injury and or loss of life WARNING 38 After all leaks are eliminated replace control access panel EXPLOSIO...

Page 9: ...8 NPTx 3 4 IN 19 1 MM CLOSE PIPE NIPPLE 1 8 ELBOW 1 8 ELBOW 1 8 NPTx 3 4 IN 19 1 MM CLOSE PIPE NIPPLE 1 8 NPTx 2 IN 50 8 MM NIPPLE LOW GAS PRESSURE SWITCH TWO A09016 Fig 11 Installing Elbows Nipples...

Page 10: ...easier access to the burner assembly The bracket may be removed by removing 2 screws located on the left side of the control compartment on the fan partition panel and sliding the bracket forward bott...

Page 11: ...on air pressure switch and connect it to the orange wire on the low gas pressure switch LGPS equipped with a 1 4 in male quick connect terminal The low gas pressure switch should have one unconnected...

Page 12: ...Fig 15 Single Stage Orifice Installation 1 2 3 4 5 6 7 8 9 10 11 12 LGPS PLUG J2 FURNACE CONTROL BOARD LEGEND ORN ORANGE YEL YELLOW LGPS LOW GAS PRESSURE SWITCH CAPS COMBUSTION AIR PRESSURE SWITCH ORN...

Page 13: ...occur the gas pressure at switch drops below low gas pressure switch setting and switch opens Any interruption in control circuit in which low gas pressure switch is wired quickly closes gas valve and...

Page 14: ...l 45 sec to energize the indoor blower motor On removal of the call for heat the gas valve will immediately shut down the inducer motor will run for an additional 5 sec and the indoor blower will run...

Page 15: ...ELBOW LOW GAS PRESSURE SWITCH 1 8 NPTx 2 IN 50 8 MM NIPPLE 1 8 NPTx 3 4 19 1MM CLOSE PIPE NIPPLE 1 8 NPTx 3 4 IN 19 1 MM CLOSE PIPE NIPPLE A09017 Fig 19 Installing Elbows Nipples and Pressure Switch o...

Page 16: ...St D Indianapolis IN 46231 Printed in U S A Edition Date 04 10 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No IIK CP...

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