Helmer Scientific i.Series
®
and Horizon Series
™
Refrigerator - Pass-Thru
Service and Maintenance Manual
360429/A
62
15 Schematics
15.1 HBR and HPR Models
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.
Condensate
Heater
(F)
POWER CORD
MAIN POWER
115V~ (±10%) 60 Hz
230V~ (±10%) 50 Hz
230V~ (±10%) 60 Hz
(A)
L2 IN
GND
L2
OUT
L1 IN
L1
OUT
MAIN
POWER
SWITCH
CIRCUIT
BREAKERS
(D)
(C)
GND
Power Entry
/ RFI Filter
(B)
6 5 4
2 1
3
GROUND
NEUTRAL (L2)
LINE (L1)
DC POWER SUPPLY
COMPRESSOR INVERTER
DC POWER SUPPLY
TERMINAL
STRIP
COMPRESSOR INVERTER
COMPRESSOR INVERTER
(E)
From i.C3, J44, Pin 1
6 5 4
2 1
3
6 5 4
2 1
3
DC POWER SUPPLY
To Control Board, J18, Pin 1
CONDENSER FAN MOTOR
UNIT COOLER
(G)
58 Model - 3 Motors
26 Model - 2 Motors
UNIT COOLER FAN(S)
(H)
LIGHTING POWER SUPPLY
LIGHTING POWER SUPPLY
Horizon Series