field service bulletin - turbochef.com · a. locate the element wires from step 6.b and reterminate...

REFERENCE:Control board failures on Fire ovens.

TYPE OF ACTION REQUIRED: REACTIVE

APPLICATION:All Fire ovens that do not have an independent SSR installed.

PROBLEM:The heater utilizes relays located on the control board. If these relays fail, the entire control board must be replaced.

SOLUTION: Install the FRE-3013 SSR Field conversion kit to utilize a more robust and independent solid state relay. Refer to the schematics on page 3 (Figures 12 and 13) as required. FRE-3013 includes the following:• New control board for use with SSR - P/N: FRE-1206• SSR Contactor Wires, 27.5”, QTY 2 (one red and one white wire) - P/N: part of FRE-1200 • SSR Control Wires, 36” - P/N: part of FRE-1200• SSR with Heatsink - P/N: ENC-1788• Drill Template - P/N: FRE-1207• Blue Insulated Lugs, QTY 2 - P/N: 100826• Screw, #8 x 1/2 PHTRHD, CRES, QTY 2 - P/N: 101688

SSR FIELD CONVERSION PROCEDURE:1. If possible, access the oven’s parameters and note any custom cook settings.

2. Turn off the oven and allow it to cool.

CAUTION: The oven operates at temperatures up to 842°F (450°C) and may cause injury if not allowed to cool properly

3. Gain access to the oven’s wiring. a. Unplug the oven.

DANGER: Before replacing any oven component, ensure the oven is removed from any power source.

b. Remove the back panel (eight screws and the connectors for the two cooling fans). c. Tip the oven onto its right side (when looking at the front) and brace it so it will not roll. d. Remove the bottom panel (seven screws) by carefully pulling the bottom panel down to the work surface, while ensuring no wires become unplugged or damaged. e. Remove the screws from the display housing (two above the display) and remove it from the oven. f. Remove the top of the display housing to gain access to the control board (two screws).

4. Remove the old control board.

5. Install the SSR (ENC-1788). a. Place the drill template (FRE-1207) as shown in Figure 1 and, using a #12 drill bit (hole diameter 0.189 in.), drill the two holes as indicated on the template (Figure 2). b. Using the two screws (101688) included in this kit, attach the SSR as shown in Figure 3.

Date: ___________________File: ____________________

Field Service Bulletin

2019 TurboChef Technologies, Inc.

TM

c of 3

FSB-10127BMay 9, 2019

TurboChef Confidential Material

Encore

Bullet

HhC 2620

G5

Fire

TSO

TDO

HhC 1618

TDO2

HhC 3240

i1 (Sota/NGO)

X i3

i5

C3

HHD

HHB

NGC

HhC 2020

X

--- Continued on Next Page ---

Figure 1: Place Drill Template (FRE-1207)

Figure 2: Drill where Indicated

Figure 3: Attach SSR to Oven

Drill Here

6. Following the instructions below, remove Connector #1 (8 terminals) from the display housing (Figure 4). a. Disconnect the display housing cooling fan wires from positions 8 and 7.

NOTE: The display housing cooling fan is not present on all ovens. Positions 8 and 7 may be empty.

b. Disconnect the element wires from positions 5 and 2. c. Re-route the element wires out of the display housing through the grommet (next to the contactor). These wires will be connected to the SSR in a later step. d. Locate the contactor (Figures 5 and 6) and remove the wires in terminals 2T1 and 6T3. Once removed, Connector #1 should be completely disconnected from the harness (Figure 6). Discard this connector.

7. Install the 36” SSR control harness (part of FRE-1200). a. Locate the 36” SSR control harness and route the four-pin connector through the display housing grommet.

NOTE: This harness has a new Connnector #1 that has been pre-wired in positions 5, 2, and 1.

b. Connect the four-pin connector to the SSR (Figure 8). Orient the 4-pin connector as shown in Figure 8. Pin 4 will be either black or white, pin 1 will be red. c. If the oven has a display housing cooling fan (Figure 5), connect the wires removed in step 6.a to the 36” SSR control wire harness now (Figure 9). i. Connect the red wire from Connector #2 to position 8 on the new Connector #1. ii. Connect the gray wire from the cooling fan to position 7 on the new Connector #1.

Date: ___________________File: ____________________



TM

c of 3

FSB-10127BMay 9, 2019


Encore

Bullet

HhC 2620

G5

Fire

TSO

TDO

HhC 1618

TDO2

HhC 3240

i1 (Sota/NGO)

X i3

i5

C3

HHD

HHB

NGC

HhC 2020

X

--- Continued on Next Page ---

Figure 4: Connectors #1 and #2

Figure 8: SSR 4-Pin Connector

Figure 5: Display Housing Figure 6: Contactor Terminals

8 7 6 4 3 2 15Positions

Connector #1Connector #2Connector #1 2T1 6T3

Cooling Fan Grommet Contactor

Figure 7: Removed Harness

4-Pin Connector

Pin 4: Black or WhitePin 3: RedPin 2: WhitePin 1: Red

Figure 9: Connector #1 on New SSR Control HarnessPosition 8, Wire from #2 Connector

Position 7, Wire from Cooling Fan

4 3 2 1

8. Install the two 27.5” SSR contactor wires (part of FRE-1200). a. Locate the two 27.5” SSR contactor (one white and one red). b. Connect the white wire’s ferrule to position 2T1 on the contactor (Figure 6, page 2). c. Connect the red wire’s ferrule to position 6T3 on the contactor (Figure 6, page 2). d. Route the red and white 27.5” SSR Contactor wires through the display housing grommet (Figure 5, page 2). e. Connect the white contactor wire to SSR terminal A1 (top-right as oriented in Figures 10 and 11). f. Connect the red contactor wire to SSR terminal B1 (bottom-left as oriented in Figures 10 and 11).

9. Connect the element wires to the SSR. a. Locate the element wires from step 6.b and reterminate them using the 2 lugs (100826) included in this kit. b. Connect the white element wire to SSR terminal A2 (bottom-right as oriented in Figures 10 and 11). c. Connect the red element wire to SSR terminal B2 (top-left as oriented in Figure 10 and 11).

10. Connect the new control board (FRE-1206) included in this kit.

11. Re-assemble the oven.

CAUTION: When re-installing the back panel, ensure that you reconnect the cooling fans and route the high limit wire away from any electrical connections.

12. Confirm the new control board’s parameters are set correctly (see DOC-1485) and reprogram any custom cook settings.

Date: ___________________File: ____________________



TM

c of 3

FSB-10127BMay 9, 2019


Encore

Bullet

HhC 2620

G5

Fire

TSO

TDO

HhC 1618

TDO2

HhC 3240

i1 (Sota/NGO)

X i3

i5

C3

HHD

HHB

NGC

HhC 2020

X

--- End of Procedure ---

Figure 11: SSR WiredFigure 10: SSR Terminals

A1 - White Wire from Contactor Terminal 2T1

A2 - White Wire from ElementRed Wire from Contactor Terminal 6T3 - B1

Red Wire from Element - B2

4 3 2 1

4-Pin Connector

Pin 4: Black or WhitePin 3: RedPin 2: WhitePin 1: Red

DRAWING NO

DWG NO SH 1

78

65

1234

FRE-1207

FRE-1207

A1 A2

R2 BOTTOM ELEMENT CONTACTORC1BLU (L2)

WHT (L1)

WHT (L1)BLU (L2)

RED (L1)

BLU (L2)

WHT (L1)

2100 W

4

2

6

14

1

3

5

13

R1 TOP ELEMENTBLU (L2)

1600 WRED (L1)

B2

A2

42

1B

A

K5

- B1

K4

-+

+

A1

TOPHEATER

BOTTOMHEATER

3

RED (+12 VDC)WHITE (-12 VDC)

RED (+12 VDC)WHITE (-12 VDC)

78

65

1234

A1 A2

R2 BOTTOM ELEMENT CONTACTORC1BLU (L2)

WHT (L1)

WHT (L1)

BLU (L2)

RED (L1)

BLU (L2)

WHT (L1)

2100 W

4

2

6

14

1

3

5

13

R1 TOP ELEMENTBLU (L2)

1600 W RED (L1)RED (L1)

WHITE (L1)

RED (L1)

RED (L1)

WHITE (L1)

RED (L1)

Figure 13: Heater Wire Schematic, New Wiring with SSR

Figure 12: Heater Wire Schematic, Old Wiring without SSR

field service bulletin - turbochef.com · a. locate the element wires from step 6.b and reterminate...

Documents