Frymaster Dean FPHD - Manual (Page 11)

HIGH EFFICIENCY DECATHLON SERIES GAS FRYERS
CHAPTER 1: SERVICE PROCEDURES
1-6
Interface Boards (cont.)
FREQUENTLY USED TEST POINTS FOR HIGH EFFICIENCY DECATHLON (HD) FRYERS
106-6669 INTERFACE BOARD
Test Meter Setting Pins Test Results
12VAC Power to Controller 50 VAC Scale 1 and 3 on J3 12-18
12VDC Power to Right BL Relay 50 VDC Scale 4 on J2 and 5 on J2 12-18
12VDC Power to Left BL Relay 50 VDC Scale 7 on J1 and 5 on J2 12-18
24VAC Power to High-Limit 50 VAC Scale 6 on J2 and GROUND 22-28
24VAC Power 50 VAC Scale 2 on J2 and GROUND 22-28
24VAC Power To 24VAC Gas Valve 50 VAC Scale 7 on J2 and GROUND 22-28
Probe Resistance* R x 1000 Ohms 10 and 11 on J2 **
* Disconnect 15-pin harness from controller before testing probe circuit.
** See Probe Resistance Chart at the end of this chapter.
HIGH EFFICIENCY DECATHLON (HD) FRYER
LED DIAGNOSTIC LIGHTS
(106-6669 INTERFACE BOARD)
CMP Indicates power from 12V transformer.
24V
Indicates power from 24V transformer.
HI Indicates output (closed) from latch relay (K4).
HT Indicates output from heat relay (K3).
AL Indicates output (open) from latch relay (K4).
The board contains two heat relays (K2 and K3), and two basket lift relays (K1 and K4). NOTE: On
factory-original units not equipped with basket lifts and on service interface boards, the board will
have no basket lift relays installed.