Merco MHCFA23 and 24 Domestic 2x3 & 2x4 Forced Air Holding Cabinets Wiring Diagram

MERCO
980 SOUTH ISABELLA ROAD, MOUNT PLEASANT, MI 48858
844-724-CARE
WWW.MERCOPRODUCTS.COM
Diagram
Domestic 2x3 & 2x4 Forced Air Holding Cabinets
I/O 0A B0ARD - ZONES 2 AND 4
MHCFA23 & MHCFA24
YL,TC,AIR,ZONE 2
BR,TC,PAD,ZONE 2
YL,TC,AIR,ZONE 4
BR,TC,PAD,ZONE 4
PN:2187007
J1 J2 J3 J4
J15
J14
USB ADAPTER CABLE TO PANEL
J6
J10
J11
J12
J5
MEMBRANE SWITCH,8 PIN RIBBON
J14
J8 J7
PN: 2195357
RD (+) 12VDC, TERM BLOCK
J16
SW1
MEMBRANE SWITCH,12 PIN RIBBON
PN: 2187010
BL (-) 12VDC, TERM BLOCK
DISP BRD, J6, 6PIN
PN:2186998
PN:2186997
J17 J18 J19 J20 J21 J22 J23 J24
TO I/O 0B, J12, 8PIN
SW1
TO ICC WARMER ADAPTER
PN: 2187057
J17
J19
J18
J20
J21
J23
J22
PN: 2187009
J5
J24
BR,AC L,RH TERM BLOCK
BR,PAD,ZONE 4,RH SIDE,TOP
BR,AIR, ZONE 4,RH SIDE,TOP
BR,PAD,ZONE 2,RH SIDE,BOT
BR,AIR,ZONE 2,RH SIDE,BOT
POWER SWITCH
BL,AC L,INCOMING POWER
WH,AC N,INCOMING POWER
BU,AC N,TO TERM BLOCK
PN:2187019
GN, TO #10 GROUND STUD
BR,AC L,TO TERM BLOCK
J2
J3
SW1
J4
J1
J5 J6
DISPLAY
B0ARD
I/O 0A,J10,6PIN
1 of 3
WDMHCFA23&24 11/14
12VDC POWER SUPPLY
Domestic 2x3 & 2x4 Forced Air Holding Cabinets
GN, TO #10 GROUND STUD
CN2 - 12VDC OUTPUT
BU,AC N,RH TERM BLOCK
CN1 - 100 TO 277VAC INPUT
BR,AC L,RH TERM BLOCK
BL(-)12VDC,RH TERM BLOCK
RD(+)12VDC,RH TERM BLOCK
RD(+)12VDC,RH TERM BLOCK
PN: 2187012
PN: 2187013
RD(+)12VDC FROM PS
BL(-)12VDC FROM PS
BU,AC N,PAD 1
RD(+)12VDC TO KM
BL(-)12VDC TO KM
BU,AC N,PAD 2
RD(+)12VDC TO LH SIDE
BL(-)12VDC,RH TERM BLOCK
BL(-)12VDC TO LH SIDE
RH - TERMINAL BLOCK
BU,AC N,TO LH SIDE
BU,AC N,JUMPER
RD(+)12VDC FROM PS
RD(+)12VDC TO FAN 1
RD(+)12VDC TO FAN 2
RD(+)12VDC TO RH I/O 0A
LH - TOP ZONE - ZONE 3
BL(-)12VDC FROM PS
BU,AC N,SWITCH
BL(-)12VDC TO FAN 1
BU,AC N,AIR 1
BR,AC L,TO LH SIDE
BL(-)12VDC TO FAN 2
BU,AC N,AIR 2
BU,AC N,TO PS
BR,AC L,TO PS
BL(-)12VDC TO I/O 0A
BU,AC N,JUMPER
BU,AC N,JUMPER
BR,AC L,TO I/O 0A,J17,19,21,23
RH - TOP ZONE - ZONE 4
RD(+)12VDC,LH TERM BLOCK
RD(+)12VDC,RH TERM BLOCK
BL(-)12VDC,LH TERM BLOCK
BL(-)12VDC,RH TERM BLOCK
YL,I/O 0B,J3(TC,AIR,TOP)
YL,I/O 0A,J3(TC,AIR,TOP)
BR,I/O 0B,J22(AIR,TOP)
BR,I/O 0A,J22(AIR,TOP)
BU,AC N,LH TERM BLOCK
BU,AC N,LH TERM BLOCK
BR,I/O 0B,J4(TC,PAD,TOP)
BR,I/O 0A,J4(TC,PAD,TOP)
BR,I/O 0B,J24(PAD,TOP)
BR,I/O 0A,J24(PAD,TOP)
BU,AC N,LH TERM BLOCK
LH - BOTTOM ZONE - ZONE 1
BU,AC N,LH TERM BLOCK
RH - BOTTOM ZONE - ZONE 2
RD(+)12VDC,LH TERM BLOCK
RD(+)12VDC,RH TERM BLOCK
BL(-)12VDC,LH TERM BLOCK
BL(-)12VDC,RH TERM BLOCK
YL,I/O 0B,J1(TC,AIR,BTM)
YL,I/O 0A,J1(TC,AIR,BTM)
BR,I/O 0B,J18(AIR,BTM)
BR,I/O 0A,J18(AIR,BTM)
BU,AC N,TERM BLOCK
BU,AC N,TERM BLOCK
BR,I/O 0B,J2(TC,PAD,BTM)
BR,I/O 0A,J2(TC,PAD,BTM)
BR,I/O 0B,J20(PAD,BTM)
BR,I/O 0A,J20(PAD,BTM)
BU,AC N,TERM BLOCK
2 of 3
WDMHCFA23&24 11/14
BR,AC L, FROM SWITCH
BU,AC N,TERM BLOCK
Domestic 2x3 & 2x4 Forced Air Holding Cabinets
BR,AC L,RH TERM BLOCK
BR,AC L,LH TERM BLOCK
BU,AC N,LH TERM BLOCK
BU, AC N,RH TERM BLOCK
PN: 2187011
BU,AC N,LH TERM BLOCK
RD(+)12VDC,LH TERM BLOCK
RD(+)12VDC,RH TERM BLOCK
I/O 0B B0ARD - ZONES 1 AND 3
BL(-)12VDC,LH TERM BLOCK
BL(-)12VDC,RH TERM BLOCK
YL,TC,AIR,ZONE 1
BR,TC,PAD,ZONE 1
YL,TC,AIR,ZONE 3
BR,TC,PAD,ZONE 3
PN: 2187010
J1 J2 J3 J4
J15
J14
J6
BL(-)12VDC,LH TERM BLOCK
J10
J11
J12
SW1
J5
J8 J7
RD(+)12VDC,LH TERM BLOCK
J16
J14
PN: 2187006
FROM I/O 0A, J11, 8PIN
J17 J18 J19 J20 J21 J22 J23 J24
J17
J19
J18
J20
J21
J23
J22
SW1
J5
J24
BR,AC L,LH TERM BLOCK
PN: 2187009
BR,PAD,ZONE 3,LH SIDE,TOP
BR,AIR,ZONE 3,LH SIDE,TOP
BR,PAD,ZONE 1,LH SIDE,BOT
BR,AIR,ZONE 1,LH SIDE,BOT
LH - TERMINAL
BLOCK
BU,AC N,PAD 1
BR,AC L,RH SIDE
BU,AC N,PAD 2
BR,AC L, TO I/O 0B
J17,19,21,23
BU,AC N,FROM RH SIDE
RD(+)12VDC FROM RH SIDE
RD(+)12VDC TO FAN 1
RD(+)12VDC TO FAN 2
RD(+)12VDC TO I/O 0B
BL(-)12VDC FROM RH SIDE
BU,AC N,AIR 1
BL(-)12VDC TO FAN 1
BU,AC N,AIR 2
BL(-)12VDC TO FAN 2
BL(-)12VDC TO I/O 0B
BU,AC N,FROM RH SIDE
3 of 3
WDMHCFA23&24 11/14