Mueller PMC 40/50 User manual

Part No. 9842311
Effective February 23, 1999
Revised October 17, 2019
Bakery Chiller
Models PMC 40/50
and PMC 70/120
INSTALLATION AND OPERATION MANUAL

Section 1.0 – Introduction
1.1 General Information ........................................................................................................1
1.2 Mueller Bakery Chiller Evaporator Assembly .............................................................................1
1.3 Dimensions and Weight.....................................................................................................1
1.4 Description of the Equipment.............................................................................................. 2
1.5 Refrigeration Components................................................................................................. 2
1.6 Liquid Solution Flow Components ........................................................................................ 2
1.7 Electrical Components..................................................................................................... 2
Section 2.0 – Installation
2.1 Inspection................................................................................................................... 3
2.2 Safety........................................................................................................................ 3
2.3 Location..................................................................................................................... 3
2.4 Chilled Water Piping ....................................................................................................... 3
2.5 Condensing Unit Installation.............................................................................................. 4
Section 3.0 – First Time Startup and Cleaning the System
3.1 First Time Startup and Cleaning Procedure ..............................................................................5
3.2 Filling the System ...........................................................................................................5
Section 4.0 – Programming and Troubleshooting
4.1 Power On Sequence of Operation .......................................................................................... 6
4.2 Error Messages ............................................................................................................. 6
4.3 Locking and Unlocking the Temperature Controller..................................................................... 7
4.4 Changing the Setpoint on the Temperature Controller .................................................................. 7
4.5 Changing the Calibration Offset on the Temperature Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4.6 Changing the Units of Measure on the Temperature Controller......................................................... 8
Table of Contents
Bakery Chiller
Models PMC 40/50 and PMC 70/120
INSTALLATION AND OPERATION MANUAL
Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019

Section 5.0 – Diagrams
5.1 Wiring Diagram, Part No. 9842313........................................................................................ 9
5.2 Flow Diagram, Bakery Chiller Model PMC 70/120 .....................................................................10
5.3 Flow Diagram, Bakery Chiller Model PMC 40/50 ......................................................................10
Section 6.0 – Parts Illustrations
6.1 Control Box ................................................................................................................ 11
6.2 Control Box Parts List..................................................................................................... 11
6.3 Chiller Assembly, Model PMC 40/50.....................................................................................12
6.4 Chiller Assembly Parts List, Model PMC 40/50.........................................................................13
6.5 Chiller Assembly, Model PMC 70/120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.6 Chiller Assembly Parts List, Model PMC 70/120........................................................................ 15
Section 7.0 – Refrigeration Units
7.1 Specifications/Electrical Data for Model PMC 40/50 with 2 HP Unit ................................................. 16
7.2 Specifications/Electrical Data for Model PMC 70/120 with 3.5 HP Unit .............................................. 16
7.3 Refrigeration Cycle Diagram ............................................................................................. 17
7.4 EPA Refrigerant Regulations ............................................................................................. 17
7.5 Thermal Expansion Valve (TEV) Superheat Adjustment...............................................................18
7.6 Thermal Expansion Valve Superheat Adjustment Diagram ............................................................19
Section 8.0 – Equipment Markings
8.1 Label No. 8826319, ETL...................................................................................................20
8.2 Label No. 30890, Control Box Data Plate.................................................................................20
8.3 Label No. 8823376, Data Plate ............................................................................................20
8.4 Label No. 8820677, Ground Symbol ......................................................................................21
8.5 Label No. 8823373, Field Connections ...................................................................................21
8.6 Label No. 8823374, Supply Conductors ..................................................................................21
8.7 Label No. 9901403, In .....................................................................................................21
8.8 Label No. 9901404, Out ................................................................................................... 21
Section 9.0 – Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Section 10.0 – Installation and Service Notes ......................................................................23
Table of Contents
Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
1.1 GENERAL INFORMATION
Mueller® bakery chillers are designed to provide chilled water at a preset temperature for batch applications. This
manual provides the basic information necessary to install, startup, and operate a Mueller bakery chiller. The
information in this manual must be followed to prevent damage to the equipment. Please contact Paul Mueller
Company for additional technical assistance.
Paul Mueller Company
1600 West Phelps Street
Springfield, Missouri 65802
Direct Telephone: [phone]
Facsimile: 1-800-436-2466
Email: [e-mail]
1.2 BAKERY CHILLER EVAPORATOR ASSEMBLY
1.3 DIMENSIONS AND WEIGHT
1
Section 1.0 – Introduction
Process Valve
Bakery Mixer
Bakery Chiller
Air-Cooled Condensing Unit
Suction Line
Liquid Line
Circulation Pump
Make-Up
Water Inlet
Drain
Valve
Field Installed
Process Flow Switch
S
FS
1
TE
1
LS
1
S
CR0012
PMC 40/50 PMC 70/120
Width 32" 42"
Depth 24" 34"
Height 72" 84"
Approximate Shipping Weight 310 lb 705 lb

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
1.4 DESCRIPTION OF THE EQUIPMENT
The Mueller bakery chiller evaporator assembly is available in two sizes and two model variations to meet
installation and application needs.
A. Sizes:
• PMC 40/50: Nominal 50-gallon storage capacity to be used with a 2 horsepower (HP) condensing unit.
• PMC 70/120: Nominal 120-gallon storage capacity to be used with a 3.5 HP condensing unit.
B. Model Variations:
• RC: Evaporator assembly and remote condensing unit.
• RS: Evaporator assembly and solenoid valve for a rack system.
1.5 REFRIGERATION COMPONENTS
The refrigeration components of the evaporator assembly include a thermal expansion valve for refrigerant control,
a stainless steel evaporator that is outside a baked, glass-lined water tank, and inner-connect refrigerant piping.
Single point refrigeration piping connections are provided for ease of installation (see Section 2.5).
1.6 LIQUID SOLUTION FLOW COMPONENTS
The liquid solution flow components include a baked, glass-lined, and insulated water storage tank; a water
solenoid valve to control make-up water and recirculation; a circulation pump; and inner-connect piping. Single-
point 3⁄4" MPT connections are provided for water inlet and chilled water outlet.
This system is designed to maintain the water level in the storage tank after each batch of chilled water is drawn.
Make-up water will not enter the storage tank during the batch draw, eliminating temperature blending of warmer
make-up water and chilled water.
1.7 ELECTRICAL COMPONENTS
All wiring must be performed in compliance with the National Electric Code and local codes and regulations.
The control box contains fuses for system protection. Fuse failure requires troubleshooting to determine the cause
of failure and replacement with the same fuses, as described in Section 5.0.
The electronic temperature control can be set for temperature control of chilled water and temperature display in
Fahrenheit or Celsius. Programming is described in Section 4.0.
2

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
2.1 INSPECTION
Because it is possible for equipment to be damaged during shipment, Paul Mueller Company recommends
thoroughly inspecting the equipment before it is unloaded from the freight truck. Carefully examine the equipment
for concealed damage. It may be difficult to collect for damage if it is not found prior to unloading. It is important to
note any damage on the bill of lading and have the driver sign it.
2.2 SAFETY
The installation and service should be performed by an authorized service technician with the proper training to
install and service refrigeration equipment. Effective November 1994, the service technician must be certified in
refrigerant usage by a testing organization approved by the U.S. Environmental Protection Agency (EPA) before
installing or servicing refrigeration equipment.
All electrical connections must be performed by a qualified electrician in accordance with the National Electric
Code and local regulations.
2.3 LOCATION
When choosing a location for the Mueller bakery chiller, consider these items:
• Environment: The Mueller bakery chiller should be located indoors where the chiller section is protected
from freezing temperatures.
• Serviceability: The bakery chiller should be located with the circulating pump and the control panel
accessible for service. Keep in mind the chiller will require field connections to the main electrical supply and
water supply line. The chiller should be located close to a drain for service and cleaning.
• Condensing Unit: The condensing unit (for RC bakery chiller models) must be located where it is protected
from the environment and have adequate air flow for the condenser. Be especially cautious of conditions
allowing dust or oil to enter the condenser.
• Efficiency: Locate the bakery chiller as close as possible to point of use for chilled water.
2.4 CHILLED WATER PIPING
The bakery chiller supply water should be connected to the 3⁄4" inlet water solenoid valve located at the top of the
water tank (refer to the flow diagrams, see 5.2 and 5.3). The supply water line should be taken from a source that
provides adequate water flow and is a minimum of 3⁄4" in size. It is recommended a full-flow shut-off valve and
union be installed just prior to the solenoid valve for service.
The chilled water supply should be connected to the 3⁄4" chilled water outlet located near the circulation pump.
Keep this line as short as possible to allow for chilled water of the desired temperature to be provided to the point(s)
of use. This line should be insulated to reduce external heat gain to the chilled water.
Check all piping for leaks and repair if required. Clean and rinse lines and water storage tank prior to usage.
3
Section 2.0 – Installation

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
2.5 CONDENSING UNIT INSTALLATION
All refrigerant piping should be in accordance to acceptable refrigeration practices. Distance between condensing
unit and bakery chiller assembly should be as close as possible. Long distance piping and risers may require
attention to reduce restriction of refrigerant flow and to provide adequate oil return.
The liquid line should be 3⁄8" OD copper pipe and the suction line 7⁄8" OD copper pipe. A liquid line drier of adequate
size should be installed on all PMC 40/50 RC and RS models. A liquid line drier is provided on 3.5 HP condensing
units for PMC 70/120 RC and RS models. A liquid line sight glass should be installed just prior to the thermal
expansion valve (TEV) on the bakery chiller evaporator assembly. Attach the TEV sensing bulb to the suction line
and insulate after refrigerant lines are installed, as shown in Section 7.3 and Figure 7.
Evacuation to 500 microns prior to refrigerant charging is required. The system must hold 1,000 microns in a
standing vacuum test, ensuring that it is leak free.
Initial refrigerant charging should be through the liquid service valve, as most blended refrigerants must be charged
in liquid form only. Charge with an adequate amount of refrigerant prior to starting the compressor and make sure
the water storage tank is filled with water. Refer to Section 3.0 for startup procedures.
4

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
3.1 FIRST TIME STARTUP CLEANING PROCEDURE
Before proceeding, ensure the water piping is complete, as described in Sections 2.4 and 5.0, Figure 3, and the
refrigeration piping is complete, as described in Sections 2.5 and 7.0. In addition, ensure the wiring is complete, as
described in Section 5.0.
1. First, open the supply water shut-off valve(s).
2. Open the drain valve located at the outlet of the water storage tank.
3. A toggle switch, located inside the control box in the back panel’s upper right corner, disables the circulation
pump. The up position allows the pump to run and the down position disables the pump. Turn the toggle
switch to the down position.
IMPORTANT: The circulation pump should be disabled on initial startup and any time the water storage
tank is empty. Disabling the circulation pump allows the fill solenoid to fill the tank and prevents the
pump from running dry.
4. Turn the power on to the control panel. Make sure the power is off to the condensing unit during this part of
startup. Push the green push-button switch on the front of the control panel to energize the system, allowing
water to flow into the storage tank. Allow water to flow until clean and clear water is flowing out of the drain.
5. Close the drain valve and allow the storage tank to fill.
6. Turn the toggle switch to the up position and allow the circulation pump to operate for two minutes and turn
the push-button switch off.
7. Open the drain valve again and drain the water from the storage tank. If the water is not clean, repeat the
cleaning procedure.
3.2 FILLING THE SYSTEM
1. Close the drain valve.
2. Turn the toggle switch to the down position.
3. Turn the push-button switch on to fill the system with water again.
4. Open the chilled water valve and allow water to flow until clean.
5. Close the chilled water valve and allow the storage tank to refill with make-up water.
6. Turn the toggle switch to the up position to operate the circulation pump.
7. Complete the initial condensing unit charging procedure. Final refrigerant charging is to be completed in
conjunction with the TEV superheat adjustment, as described in Section 7.0.
5
Section 3.0 – First Time Startup and Cleaning the System

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
4.1 POWER ON SEQUENCE OF OPERATION
A. When the push button is in the OFF (out) position:
1. Power is supplied to the temperature controller and a temperature is displayed. Setpoints may be changed
any time power is supplied to the temperature controller. The temperature displayed may not be a true
reading of tank temperature if the circulation pump is not running.
2. All other functions of the bakery chiller are disabled.
B. When the push button is in the ON (recessed) position:
1. Power is supplied to the temperature controller and a temperature is displayed. Setpoints may be changed
any time power is supplied to the temperature controller. The temperature displayed may not be a true
reading of tank temperature if the circulation pump is not running.
2. The system light at the center of the ON/OFF button is on.
3. The fill solenoid will allow the water storage tank to fill until the level switch stops the fill near the top of
the water storage tank.
4. The circulation pump is on. Any time the tank is empty, or on initial start up, the operator must disable the
circulation pump. This will allow the fill solenoid to fill the tank and prevent the pump from running dry.
Refer to Section 3.1, “First Time Startup,” for detailed information.
5. Water will flow through the chiller recirculation loop piping and solenoid to the top of the tank.
6. The condensing unit will operate if the water temperature is above the setpoint.
7. When a batch is drawn, the flow through the process piping increases and will open the process flow
switch contacts, disabling the fill solenoid and condensing unit, and closing the recirculation solenoid.
8. When the batch draw is complete, the process flow switch contacts close and the fill solenoid will refill the
water storage tank. When the water storage tank is full, the temperature controller again has control of the
condensing unit.
4.2 ERROR MESSAGES
A display reading of “uuuu” is a designation of a disconnected or broken temperature sensor wire. Should this
occur, service is required to correct the problem.
6
Section 4.0 – Programming and Troubleshooting

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
4.3 LOCKING AND UNLOCKING THE TEMPERATURE CONTROLLER
1. Press and hold the “SEL” key for five seconds until “AL1” is displayed. Press the “” down key once to display
“LoC.”
2. Press the “SEL” key once again to display the locking code (“0” for unlocked and “4” for locked).
3. Press the “” up key or the “” down key until either “0” for unlocked or “4” for locked is displayed.
NOTE: Any number between “0” and “5” may be entered, but only “0” and “4” are active.
4. Press the “SEL” key to save the change made. The controller will once again display “LoC.”
5. Press and hold the “SEL” key for five seconds until the setpoint value is displayed, indicated by a small “SV”
illuminating in the upper left corner of the controller.
6. Press the “SEL” key to display the current tank temperature.
NOTE: If the “SEL” key is not pressed within approximately 25 seconds, the controller will time out and return
to the current temperature, storing the new setpoint or any changes made.
4.4 CHANGING THE SETPOINT ON THE TEMPERATURE CONTROLLER
1. Unlock the controller as in Section 4.3.
2. Press the “SEL” once to display the setpoint. This is indicated by a small “SV” illuminating in the upper left
corner of the controller.
3. Press the “” up key or the “” down key until the desired setpoint is displayed.
4. Press the “SEL” key to save the change made and to display the current tank temperature.
NOTE: If the “SEL” key is not pressed within approximately 25 seconds, the controller will time out and return
to the current temperature, storing the new setpoint or any changes made.
4.5 CHANGING THE CALIBRATION OFFSET ON THE TEMPERATURE CONTROLLER
1. Unlock the controller as in Section 4.3.
2. Press and hold the “SEL” key for seven seconds until “P-F” is displayed.
3. Press the “” down key once to display “PUOF.”
4. Press the “SEL” key once to display the calibration offset.
5. Press the “” up key or the “” down key to adjust the calibration offset to the amount of offset required to
match the actual water temperature. The calibration offset can be used to set the actual temperature display
should it not be the same as the water temperature in the storage tank.
7

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
4.5 CHANGING THE CALIBRATION OFFSET ON THE TEMPERATURE CONTROLLER (CONTINUED)
6. Press the “SEL” key to save the change made. The controller will once again display “PUOF.”
7. Press and hold the “SEL” key for five seconds until the setpoint value is displayed, indicted by a small “SV”
illuminating in the upper left corner of the controller.
8. Press the “SEL” key to display the current tank temperature.
NOTE: If the “SEL” key is not pressed within approximately 25 seconds, the controller will time out and return
to the current temperature, storing the new setpoint or any changes made.
4.6 CHANGING UNITS OF MEASURE ON THE TEMPERATURE CONTROLLER
IMPORTANT: Once the display has been changed to the desired unit of measure, either “F” for Fahrenheit
or “C” for Celsius, the temperature setpoint must also be changed to match the units (e.g., 36°F or 2.2°C).
Please contact Paul Mueller Company for assistance.
1. Unlock the controller as in Section 4.3.
2. Press and hold the “SEL” key for seven seconds until “P-F” is displayed.
3. Press the “SEL” key once to display the current temperature unit of measure, either “F” for Fahrenheit or “C”
for Celsius.
4. Press the “” up key or the “” down key until either “F” or “C” is displayed.
5. Press the “SEL” key to save the change made. Controller will once again display “P-F.”
6. Press and hold the “SEL” key for five seconds until the setpoint value is displayed, indicted by a small “SV”
illuminating in the upper left corner of the controller.
7. Press the “SEL” key to display the current tank temperature.
NOTE: If the “SEL” key is not pressed within approximately 25 seconds, the controller will time out and return
to the current temperature, storing the new setpoint or any changes made.
8

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
5.1 WIRING SCHEMATIC, PART NO. 9842313
IMPORTANT: A type “T” thermocouple is provided for the temperature sensor. It is important that the
thermocouple wires are properly connected to the temperature control. The constantan (silver) wire is to
be connected to terminal 2 on the temperature control. The copper wire is to be connected to terminal 3
on the temperature control.
9
Section 5.0 – Diagrams
MAIN POWER
230VAC
For Mueller “OE” series condensing units,
connect 11 and 2 on chiller control terminal
strip to 2 and 4 on condensing unit.
211
MCONDENSING UNIT
START (24VAC)
STANDARD CONTROL
PROCESS WATER OUT
FLOW SWITCH
LEVEL SWITCH
START SWITCH
PUMP DISABLE SWITCH
REFRIGERATION
CONTROL DETAIL
RECIRCULATION SOLENOID
SYSTEM OPERATION LAMP
FILL SOLENOID
CONDENSING UNIT
START DRY CONTACT
PUMP MOTOR START 5,6
LIQUID LEVEL CONTROL RELAY
21, 23, 24
REFRIGERANT CIRCUIT RELAY 25, 28
REFRIGERATION CONTROL
CONNECTIONS (SEE DETAIL)
9842313
9001759-D REV. S
CR0004

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
5.2 FLOW DIAGRAM, BAKERY CHILLER MODEL PMC 70/120
5.3 FLOW DIAGRAM, BAKERY CHILLER MODEL PMC 40/50
10
Inlet Water
Solenoid
Thermocouple
Chilled
Water
Outlet
Bakery Chiller Barrel
Circulation Pump
Vent
Drain
Valve
Process
Flow Switch
FS
1
TE
1
LS
1
S
CR0008
Water Level
Switch
Supply
Water
Inlet
S
Inlet Water
Solenoid
Thermocouple
Chilled
Water
Outlet
Bakery Chiller Barrel
Circulation Pump
Vent
Drain
Valve
Process
Flow Switch
FS
1
TE
1
LS
1
S
CR0009
Water Level
Switch
SSupply
Water
Inlet

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
6.1 CONTROL BOX
6.2 CONTROL BOX PARTS LIST
11
Section 6.0 – Parts Illustrations
PRODUCT
MODEL NUMBER PART NUMBER SERIALNUMBER
VOLTS HERTZ PHASE LRG MOTOR AMPS FLA
DISCONNECT MAIN POWER SUPPLY BEFORE SERVICING.
ROMPRE LE CABLE DE DISTRIBUTION AVANT DE REPARER.
1706 30890
FRONT VIEW
2
1
CR0005
BACK PANEL LAYOUT
3
6
5
7
4
8
12
9
10 11
13
15
13
Item No. No. Required Part No. Description
1 9842292 Control Box Assembly, Bakery
1 1 9844261 Controller, Temperature
2 1 9842305 Switch, Push Button, Lighted
3 1 8820718 Transformer, 208–240 V, PRM, 24 V Second
4 1 9844317 Liquid Level Control Module
5 2 9820091 Fuse Block, 30 Ampere, Class CC
6 1 505793 Barrier, Electrical End Fuse
7 2 9823754 Fuse, Cartridge, 7 Ampere
8 2 8820703 Fuse, Block, 30 Ampere
9 1 8806523 Fuse, Cartridge, 2 Ampere
10 6 8805635 Terminal Block
11 1 8805636 Barrier, Electrical End
12 2 8805226 Clip, Retainer
13 2 8820240 Relay, Switch, DPST, 24 VAC
14 1 8820165 Thermocouple, Sensor, Type “T”
15 1 30853 Switch, Toggle, DPST

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
6.3 CHILLER ASSEMBLY, MODEL PMC 40/50
12
ELEVATION VIEW
69"
5615∕16˝
See Detail C
11
1
2
3
410
CR0006
DETAIL D
Orientation of
3∕8˝ Diameter Holes
6
4
12
24˝
36˝
18˝
12˝
6˝
1˝
DETAIL C
Thermocouple 9
8
DETAIL B
55
TOP VIEW
See
Detail D
See Detail B
7
24
˝
32˝
10
5

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
6.4 CHILLER ASSEMBLY PARTS LIST, MODEL PMC 40/50
13
Item No. No. Required Part No. Description
1 9844600 Chiller, Bakery Model PMC 40/50
1 1 9844345 Water Pump, Circulating, .75 HP
2 1 9842292 Control Box Assembly
3 1 9842309 Switch, Flow, Magnetic
4 2 9842295 Valve, Solenoid, .75" NPT
5 2 9844350 Vent, Breather, Low Profile, 3⁄4" MNPT, Brass
6 1 8802042 Tube, Inlet Water
7 1 9844320 Probe, Level
8 1 30041 Clamp, Hose
9 1 8820165 Thermocouple, Sensor, Type “T”
10 1 9844400 Valve, Expansion
11 3 9844344 Leg, Assembly
12 1 9843187 Regulator Flow .75", 10 gpm

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
6.5 CHILLER ASSEMBLY, MODEL PMC 70/120
14
DETAIL E
Thermocouple
9
8
DETAIL A
4
13
Flow
DETAIL F
10
12
TOP VIEW
9
8
41˝
33˝
See Detail A
7
6
Detail
D
5See Detail B
CR0007
DETAIL D
Orientation of
3∕8˝ Diameter Holes
6
9˝
3˝
18˝
12˝
6˝
1˝
5615∕16˝
3
1
2
11
4
7
ELEVATION VIEW
823∕4˝
See Detail F for
Refrigerant Piping
See Detail E
35∕8˝
DETAIL B
55

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
6.6 CHILLER ASSEMBLY PARTS LIST, MODEL PMC 70/120
15
Item No. No. Required Part No. Description
1 9844604 Chiller, Bakery Model PMC 70/120
1 1 9844345 Pump, Water, Circulating, .75 HP
2 1 9842292 Control Box Assembly
3 1 9842309 Switch, Flow, Magnetic
4 2 9842295 Valve, Solenoid, .75" NPT
5 2 9844350 Vent, Breather, Low Profile, 3⁄4" MNPT, Brass
6 1 8802042 Tube, Inlet Water
7 1 9844320 Probe, Level
8 1 30041 Clamp, Hose
9 1 8820165 Thermocouple, Sensor, Type “T”
10 1 9844291 Valve, Expansion
11 4 9844344 Leg, Assembly
12 1 30478 Distributor
13 1 9843187 Regulator Flow .75", 10 gpm

Mueller Bakery Chiller, Models PMC 40/50 and PMC 70/120 Effective February 23, 1999
Installation and Operation Manual, Part No. 9842311 Revised October 17, 2019
7.1 SPECIFICATIONS AND ELECTRICAL DATA FOR PMC 40/50
BAKERY CHILLER WITH 2 HP CONDENSING UNIT
NOTE: The 2.0 HP remote condensing unit is suitable for outdoor operation with the addition of low-ambient
controls and weather protection. Call the factory for more information.
7.2 SPECIFICATIONS AND ELECTRICAL DATA FOR PMC 70/120
BAKERY CHILLER WITH 3.5 HP CONDENSING UNIT
16
Section 7.0 – Condensing Units
SPECIFICATIONS
Part No.
Unit
Model No.
Overall Dimensions Liquid
Line Valve
Suction
Line Valve
Approximate
Shipping Weight
Compressor
Model No.Length Width Height
943711 FFAP-017Z 24.1" 18.3" 16.6" 3⁄8SWT 7⁄8SWT 140 lb ZS11KAE
ELECTRICAL DATA
Unit
Model No.
208–230/1/60
Electrical
Code
M/C
Ampere
Maximum
Fuse
FFAP-017Z -CFV 17.2 25
SPECIFICATIONS
Mueller
Part No.
Unit
Model No.
Overall Dimensions Liquid
Line Valve
Suction
Line Valve
Approximate
Shipping Weight
Compressor
Model No.Length Width Height
8825311 OESE-A351 40.1" 30.4" 31.5" 3⁄8SWT 7⁄8SWT 358 lb ZB26KC-PFV
8825312 OESE-A353 40.1" 30.4" 31.5" 3⁄8SWT 7⁄8SWT 358 lb ZB26KC-TF5
ELECTRICAL DATA
208–230/1/60 208–230/3/60
Unit
Model No.
M/C
Ampere
Maximum
Fuse
M/C
Ampere
Maximum
Fuse
OESE-A351 27.4 45 — —
OESE-A353 — — 19.3 30