Vogt VT40 Service Manual

8-2 Vogt
®
VT Service Manual
Service Operations
Pressure Switches
High Pressure Safety: 12A2117H01 (Penn) / 12A2117H01CE (Danfoss – for CE machines)
This switch terminates operation of machine when high compressor discharge pressure occurs.
Settings
: Cut-Out (“Off”) 300 PSIG (R22) / 350 PSIG (R404A). Manual Reset
FIGURE 8-2A
High Pressure Safety Switch
Low Pressure Safety: 12A2117B08 (Penn) / 12A2117B03CE (Danfoss – for CE machines)
This switch terminates operation of machine when low suction pressure occurs.
Note: When the machine starts after a power failure or after the machine has cycled off on bin control or the
“on/off/clean” selector switch, the plc do not look at the low pressure switch for 90 seconds.
Settings
: Cut-out (“Off”) 10 PSIG (R22 & R404A)
Cut-in (“On”) 20 PSIG. (R22 & R404A)
Fan Control Switch:
12A2117F05 (Penn)
This switch cycles the condenser fan motors to maintain proper discharge pressure.
Settings
: Cut-in (“On”) 220 PSIG (R22) / 250 PSIG (R404A)
Cut-out (“Off”) 200 PSIG (R22) / 230 PSIG (R404A)
Harvest Hold Switch: 12A2117B03 (Penn) / 12A2117B03CE (Danfoss – for CE machines)
This switch stops harvest timer (holds machine in harvest) until the suction pressure comes up to the switch
sets set point. Note: In low ambient conditions, the harvest time may be increased by raising the switch Cut-
out setting to 70-75 psig.
Settings
: Cut-In (“On”) 45 PSIG (R22) / 60 PSIG (R404A)
Cut-out (“Off”) 65 PSIG (R22) / 80 PSIG (R404A)
FIGURE 8-2B
Condenser Fan Control Switch, Low Pressure Safety & Harvest Hold Switch
12A2117H01CE - Danfoss switch wiring
12A2117B03CE - Danfoss switch wiring

Vogt VT40 Specifications

General

Brand	Vogt
Model	VT40
Category	Ice Maker
Language	English