1-3

CURRENT FLOW THROUGH INTERFACE BOARD

106-0386SP (BIPH52/55 and MPH52/55 SERIES

APPLICATION)

1
2
3
4
5
6
7
8
9
10
11
12

J3

J2 PIN 1

J2

1
2
4
5
6
7
8
9
10
11
12
13
14
15
1
2
3
4
5
6
7
8
9
10
11
12

J1

LEFT VAT FULL OR RIGHT VAT

INTERFACE BOARD

12 VAC TO CPTR J3 PIN 1
GROUND GROUND
3
COMPUTER (12 VAC) J3 PIN 3
COMPUTER RT HT RELAY
COMPUTER LT HT RELAY
COMPUTER RT BL RELAY
NOT USED NOT USED
COMPUTER LT BL RELAY
RT ALARM OUT
** ALR (RIGHT)
COMPUTER SOUND DEVICE
LT ALARM OUT
*AD (LEFT)
COMPUTER J3 PIN 6
COMPUTER
COMPUTER J1 PIN 6
J1 PIN 2 & J3 PIN 2
NOT USED NOT USED
NOT USEDNOT USED
NOT USED NOT USED
TEMP PROBE J2 PIN 15
BASKET LIFT (DN) LT BL RELAY
MAIN GAS VALVE
BASKET LIFT (UP) LT BL RELAY
12 VAC XFMR
J2 PIN 14 TEMP PROBE
J2 PIN 3 12 VAC XFMR
NOT USED NOT USED
J2 PIN 13 TEMP PROBE
RT BL RELAY BASKET LIFT (DN)
24 VAC IN
MAIN GAS VALVE
RT BL RELAY BASKET LIFT (UP)
120 VAC IN
BLOWER XFMR BOX
COMPUTER 12 VDC TO RELAYS
NOT USEDNOT USED
NOT USED
V2D
NOT USED NOT USED
BLOWER via K4 (old)
or K2/K3 (new)
PWR via RT HT RELAY
V1S OR V1D
NOT USED NOT USED
J2 PIN 14TEMP PROBE
V2D
PWR
AD
AS
V2S
GND
V1D
PWR
ALR
V1S
GND
MOD 25V GROUND GROUND
MOD V2D
MOD 25V TERM
DRAIN SWITCH (OPT) J2 PIN 12
NOT USED NOT USED
NOT USED NOT USED
GROUND MOD 25V GROUND
J3 PIN 9 MOD V1D *
MOD 25V TERM
J3 PIN 8 via RT HT RELAY
DRAIN SWITCH (OPT)
J2 PIN 10
MOD V1S **
*
** Dual Vat configurations
** Full Vat configurations
via HLS via HLS
J3 PIN 9
J1 PIN 9
J1 PIN 8 via LT HT RELAY
NOT USED NOT USED
NOT USED