Helmer Scientific i.Series
®
and Horizon Series
™
Refrigerator - Pass-Thru
Service and Maintenance Manual
360429/A
37
THESE DRAWINGS AND SPECIFICATIONS ARE THE SOLE PROPERTY OF HELMER INC. AND SHALL NOT BE REPRODUCED OR
USED AS THE BASIS FOR MANUFACTURE OR SALES OF APPARATUS WITHOUT THE APPROVAL OF HELMER INC.
DOOR
SWITCHES
(O)
Primary Monitor
Probe
(iJ)
Speaker
Condenser
Discharge Probe
(iK)
Control Probe
(iI)
L2-2
L1-2
C
O
M
N
.O
.
L1-3
To LCD
LCD Back Light
LCD Touch Screen
To
U
ni
t C
oo
le
r F
an
i.C3 LCD
w/ Touch Screen
i.C3 Display PCBA
i.C3 Power PCBA
(iD)
2
C
O
M
N
.O
.
Double Door
Only
Secondary
Monitor Probe
(iN)
Lighting Power Supply
(M)
L2-4
L1-4
EXTERIOR
ALARM
CONTACTS
COM
NO
NC
C
O
M
N
.O
.
C
O
M
N
.O
.
Bezel Mount
Components
N/L2
L1
USB Port
(iE)
F4
Battery
BYPASS
ON
(iL)
USB Data Cable
(iG)
Power Cable
(iH)
Ethernet Port
(iF)
SD Memory Card
(iM)
Reset
USB Host
USB Port
CHART
RECORDER
*Option
CHART
RECORDER
PROBE
9V
- +
CHART
RECORDER
BATTERY
BACKUP
(CA)
(CB)
(CC)
12V
MONITOR
BATTERY
BACKUP
(iB)
BATTERY
SWITCH
*STANDARD
(iC)
(K)
COMPRESSOR
(I)
CONDENSING UNIT
FAN MOTOR
COMPRESSOR
INVERTER
(J)
L1-6
L2-6
6
L2-4
(P)
i.C3 Control PCBA
(iA)
Br
ow
n
Ye
llo
w
O
ra
ng
e
Double Door Only
INTERIOR LIGHT(S)
(N)
CONDENSATE FAN
DC MOTOR
(L)
i.Series