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Replacing Existing JC20F & JC60F Series Draft Controllers

FILED UNDER: JC-22D

Symptom

The JC20F and JC60F Series Draft Controllers can no longer be repaired or refurbished due to parts no longer available. Since these controllers are no longer available use this guide to help upgrade the existing Draft Control System.

Steps to Troubleshoot

I. Replacing existing JC20F Draft Controller:

1. The first step is to identify the type of system installed. Provide the Serial No. of the cabinet, Serial No. of the existing draft controller and the location of the installation.

2. Contact your *Local Representative and order the following:

A. JC-22D Draft Controller

B. 190752C Adapter Plate to replace JC20F in existing cabinet.

C. If a blank plate required to cover opening order part no. 190752

D. If cabinet is 8" deep or less order part no. 190723 Extension Mounting Kit.

E. If a separate enclosure required order: 107362-1 single unit, 107362-2 two units or 107362-3 three units.

F. Request a copy of drawing #SCI-JC-22D-UPGRADE, comparison wiring diagram.

G. JC-22XMTR-HPCO Draft Transmitter w/ High Pressure Cutout or JC-22XMTR-LDCO Draft Transmitter w/ Low Draft Cutout.  Note: Connect to existing draft sensing line.

H. If replacing Draft Damper Assembly specify; E-Link Draft Damper Assembly sized for __" diameter stack outlet. 

To replace 'Floating' Draft Control System

I. If replacing draft damper actuator specify; Rotary (SM15/37) or Linear (PL-2), provide torque rating from existing damper actuator. If re-using existing actuator please provide Type and Model number.

To replace 'Precise" Draft Control System

I. If replacing draft damper actuator specify; Rotary (SM15/37) or Linear (R-AL-2-3-P1-4-S2-0, 4-20 mA), provide torque rating from existing damper actuator. If re-using existing actuator please provide Type and Model number.

J. SPS Shaft Position Sensor (Firing Rate Feedback) when required.

II. Replacing existing JC60F Draft Controller:

1. The first step is to identify the type of system installed. Provide the Serial No. of the cabinet, Serial No. of the existing draft controller and the location of the installation.

2. Contact your *Local Representative and order the following:

A. JC-22D Draft Controller

B. 190752C Adapter Plate to replace JC60F in existing cabinet.

C. If a blank plate required to cover opening order part no. 190752

D. If cabinet is 8" deep or less order part no. 190723 Extension Mounting Kit.

E. If a separate enclosure required order: 107362-1 single unit, 107362-2 two units or 107362-3 three units.

F. Request a copy of drawing #SCI-JC-22D-UPGRADE, comparison wiring diagram.

G. JC-22XMTR-HPCO Draft Transmitter w/ High Pressure Cutout or JC-22XMTR-LDCO Draft Transmitter w/ Low Draft Cutout.  Note: Connect to existing draft sensing line.

H. If replacing Draft Damper Assembly specify; E-Link Draft Damper Assembly sized for __" diameter stack outlet. 

I. If replacing draft damper actuator specify; Rotary (SM15/37) or Linear (PL-2), provide torque rating from existing damper actuator. If re-using existing actuator please provide Type and Model number.

Note:  The JC60F Series controller has additional functionality that will no longer be available on the JC-22D controller. The following items are not available: Power 'On/Off' switch, Burner 'Auto/Off' switch, Damper 'Close-Stop-Auto-Open switch, Power On light, Fuel Valve Open light and Burner Run light.

Preferred recommends adding a fuse and burner 'On/Off' switch.  The remaining items at the discretion of the customer

Resolution

*To find your Local Representative please visit our Website: www.preferred-mfg.com/rep-finder.