Multimeter Access Points; A) Diagnostic Connector; B) Compressor Terminal Block - Hoshizaki KMD-450MAH Service Manual

2. Multimeter Access Points

a) Diagnostic Connector

A diagnostic connector is included in the control box to allow easier access for a
multimeter. The diagnostic connector terminals correspond to components as outlined in
Fig. 2.
Fig. 2

b) Compressor Terminal Block

A compressor terminal block is included in the control box to allow easier access for a
multimeter. The terminal block terminals correspond to components as outlined in Fig. 3.
Fig. 3
Wire Color Code: BK–black; DBu–dark blue; GY–gray; O–orange; P–pink; R–red;
V–violet; W–white
BK
Fan
Motor,
Hot
Liquid
Gas
Line
Valve
Valve
O
Inlet
Water
Valve
Compressor
C
GY
W
BK
R
S
R
O.L.
29
P
V
P
Pump Control
Motor Switch
GY V
Drain Magnetic
Valve Contactor
R
Comp.
Common
(overload)
R
Magnetic
Contactor
W
GY
Comp. Comp.
Run
Start
GY W
Start/Run Run
Capacitors Capacitor