GSI PNEG-1928 User Manual

1004 East Illinois Street • Assumption, IL 62510 • 1-217-226-4421

PNEG-1928

Tools you will need for this installation:

Instructions

UV Sensor Retrofit Instruction

Manual for Portable Dryers

Portable drill

7/8" Hole saw or step bit 1/8" Tip screwdriver

Phillips bit

Parts included with the UV-SENSE-KIT:

Part # Description

PNEG-1928 Installation Instructions (This Document)

D03-1168 UV Flame Sensor Relay

HF-7621 UV Flame Sensor Cable

9/64" Drill bit

Figure 1

GT3-1182 Time Delay Relay

GT3-1181 Time Delay Relay Base

FH-1310 Heyco Cord Connector

FH-1309 Lock Nut for Cord Connector

THH-4129 1/2" x 5" Nipple

D67-0005 1/2" Coupler

007-1149-9 1/2" to 1/8" Reducer Bushing

406-2293-8 Din Rail 3" Long

S-2786 Two (2) Self-Tapping Screws used to Mount Din Rail

Date: 06-27-13 PNEG-1928

Printed in the U.S.A.
Copyright © 2013 by GSI Group
www.gsiag.com

Page 1 of 9
CN-305799

UV Sensor Retrofit Instruction Manual for Portable Dryers

Product Description

The UV flame detection kit was designed to replace the flame rod or probe that is used on Vision dryer
controls that utilize the HF-4624 fenwal flame control board. (See Figure 2.) This flame controller uses a
flame rectification circuit that in certain situations may not work reliably with certain gases.

Figure 2 Fenwal Flame Control (HF-4624) (HF-4624 not included)

The GSI part # D03-1168 UV flame relay sensor (See Figure 3) is more reliable since it picks up the
UV light (in the 180-230 nm) that is naturally emitted in the flame when using LP, natural gas or propane
as its fuel. It replaces the flame rod or probe located in the burner and re-produces the expected flame
signal to the fenwal board.

Figure 3 UV Flame Sensor Relay (D03-1168)

This kit will include all the parts necessary to change the flame rectification sensing on a fan/heater used
on portable dryers over to UV style flame sense.

Page 2 of 9 PNEG-1928

UV Sensor Retrofit Instruction Manual for Portable Dryers

1/2" to 1/8"
Reducer bushing
(007-1149-9)

1/2" x 5" Nipple
(THH-4129)

1/2" Coupler
(D67-0005)

Sight Tube Assembly Instructions

Locate 1/2" x 5" nipple (THH-4129) and attach the 1/2" coupler (D67-0005) to one end of this nipple.
Then attach the 1/2" to 1/8" reducer bushing (007-1149-9) into the 1/2" coupling as shown in Figure 4.
(No sealant is necessary.)

Figure 4 Sight Tube Assembly

Sensor Mounting

The location to mount the sensor is critical in providing reliable flame sense. The sensor needs to
have a constant view to the flame of the burner during all burner modes and operations. Typically the
best location is just to the right of the inspection window plate as shown in Figure 5. The sensor tube
needs to be pointing between the burner veins as shown in Figure 6 on Page 4. It is best if the
sensor points slightly downward to allow any moisture that may be present to drain away from the
UV sensor component.

Once you have determined the sensors location drill a 7/8" hole into the side of the can and attach the
UV sight tube assembly into the hole using two (2) 1/2" lock nuts included with kit. Be sure to leave plenty
of thread sticking through the burner can to mount the UV sensor.

PNEG-1928 Page 3 of 9

Figure 5 Outside Sensor Location