Note: The P34A package ammonia machine began production in 1974. The original control panel
utilized Allen-Bradley NEMA components. The control panel was changed to Allen Bradley I.E.C.
components for units built after 1999.
Control Panel Components (Allen-Bradley prior to 1999)
Part NumberReq'dDescription
12A2117C031FREEZER PRESSURE SWITCH, ASCO PG16A
Replaces Mercoid Control #DA/524/2
12A2117T031TRANSDUCER, ASCO RANGE 6-60 PSI
Use with Asco Freezer Pressure Switch #12A2117C03
12A2117F071CONDENSER FAN CONTROL SWITCH
Replaces Mercoid Control #DA/24/3B or Asco 12A2117E02
Replaces all other timers (base needed for replacement)
12A7503E22011TIMER BASE #0T08-PC, EIGHT PIN PLUG-IN
12B7503E181ELAPSED TIME INDICATOR, 230V, 60HZ PANEL MOUNT
12B7503E171ELAPSED TIME INDICATOR, 220V, 50HZ PANEL MOUNT
12A7517E022RELAY 700N200A2 240-60/220-50
"CR" Relay
12A7518E01CONTACT CARTRIDGE 700-C1 FOR A/B N-TYPE RELAYS
12A7503E07TIMER 700-NT PNEUMATIC FOR N TYPE RELAY
12A7520E021PILOT LIGHT LENS "RED" DIALCO (9/16" MOUNT LIGHT)
12A7520E031PILOT LIGHT LENS "AMBER" DIALCO (9/16" MOUNT LIGHT)
12A7520E071PILOT LIGHT LENS "WHITE" DIALCO (9/16" MOUNT LIGHT)
12A7520E091PILOT LIGHT,RED,250V OSLO (SQ w/RECT. MOUNT HOLE)
12A7520E11PILOT LIGHT,AMBER,250V OSLO (SQ w/RECT. MOUNT HOLE)
12A7520E111PILOT LIGHT ,CLEAR ,250V OSLO (SQ w/RECT. MOUNT HOLE)
Note: Square Lights with rectangular hole used 1989-93
2006 Price SchedulePage 1P34A
P34A Series Parts List
Control Panel Components (Allen-Bradley prior to 1993) (Con'd)
12A7503E22012TIMER BASE #0T08-PC, EIGHT PIN PLUG-IN
12B7503E211ELAPSED TIME INDICATOR, 220V, 60HZ, DIN RAIL MOUNT
12B7503E201ELAPSED TIME INDICATOR, 220V, 50HZ, DIN RAIL MOUNT
12A7500E621A/B PILOT LIGHT OPERATOR, BLUE (7/8" NOTCHED HOLE)
"1LT" Freezing
12A7500E631A/B PILOT LIGHT OPERATOR, CLEAR (7/8" NOTCHED HOLE)
"2LT" Liquid Feed
12A7500E641A/B PILOT LIGHT OPERATOR, RED (7/8" NOTCHED HOLE)
"3LT" Thawing
12A7500E783INCANDESCENT LIGHT MODULE FOR PILOT LIGHT
12A7520E353BULB #755, A/B 2TL5/2TL7 PILOT LIGHT, 6.3V
12A7517E282A/B RELAY, 10A, 3-NO/1-NC, 208/240
"CR" Relay
12A7503E381A/B TIMER, PNEUMATIC, ON-DELAY
Time Delay for Cutter Motor on "1CR" Relay
12A7516E231A/B CONTACTOR, 9-AMP, 3-POLE, 208/240V W/1-NO AUX
"2M" Water Pump or "3M" Cutter Motor (9-amp Max)
12A7516E241A/B CONTACTOR, 12-AMP, 3 POLE, 208/240V W/1-NO AUX
"2M" Water Pump or "3M" Cutter Motor (12-amp Max)
12A7516E251A/B CONTACTOR, 16-AMP, 3-POLE, 208/240V W/1-NO AUX
"2M" Water Pump or "3M" Cutter Motor (16-amp Max)
2006 Price SchedulePage 3P34A
P34A Series Parts List
Control Panel Components (Allen-Bradley since 1999 Con'd)
Part NumberReq'dDescription
12A7530E541MANUAL MOTOR STARTER, 1.6-2.5 AMP OVERLOAD
12A7530E551MANUAL MOTOR STARTER, 2.5-4.0 AMP OVERLOAD
12A7530E561MANUAL MOTOR STARTER, 4.0-6.3 AMP OVERLOAD
12A7530E571MANUAL MOTOR STARTER, 6.3-10.0 AMP OVERLOAD
12A7530E581MANUAL MOTOR STARTER, 10.0-16.0 AMP OVERLOAD
12A7530E591MANUAL MOTOR STARTER, 20.0-25.0 AMP OVERLOAD
12A7518E332A/B AUX. CONTACT, 6A, 1 NO, SIDE MOUNT
12A2600G11FREEZER COVER GASKET 37" OD x 33" ID x 3/16"
12B2145C071P34 POLYCARBONATE FREEZER COVER W/4" VENT HOLE
12A4200B10081VALVE, AIR ADMITTANCE, 4" MAXI-VENT
19T3049P04011PIPE, 4" STD. WT. PVC 8" LG. (DRILLED)
19T4001S09164P34 FREEZER COVER RETAINING RINGS
12A2240H410916NUT, WING, BRASS, 3/8"-16NC
12A2250A1216WASHER, CUT 3/8" x 1" O.D. SS
12B2185V125641" VENT TUBE WATER DISTRIBUTOR, 16GA WHITE
12B2185V224201-1/4" VENT TUBE WATER DISTRIBUTOR, 16GA WHITE
12B2185V323061-1/2" VENT TUBE WATER DISTRIBUTOR, 16GA WHITE
12B2185V422281-3/4" VENT TUBE WATER DISTRIBUTOR, 16GA WHITE
12A2055B02BRUSH, STAINLESS STEEL #GTC210 FOR 1" TUBES
12A2055B04BRUSH, STAINLESS STEEL #GTC210 FOR 1 1/4" TUBES
12A2055B03BRUSH, STAINLESS STEEL FOR 1-1/2" TUBE
12A4009R01PLUG, RUBBER 7/8" OD X 2" LG FOR 1" TUBES
12A2220F11171MACH BOLT, 1/4"-20NC X 2 1/2"LONG
12A2240A11071NUT, HEX 1/4"-20NC S.S.
12A2250A1072WASHER, CUT 1/4" SS
12A4009R02PLUG, RUBBER 1"OD X 2 1/2"LG FOR 1-1/4" TUBES
Req'dDescription
(Requires the valve and pipe listed below when replacing
stainless, galvanized or polycarbonate cover with 2-1/2" hole)
Requires 1/4" Nuts & Bolts
Requires 3/8" Nuts & Bolts
2006 Price SchedulePage 4P34A
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