Brochure
Table Of Contents
- Refrigeration Products Catalog, PUBL-5510
- Product Catagories
- Table of Contents
- Code Number Index
- Single-Stage Electromechanical Temperature Controls
- A11 Series Low Temperature Cutout Controls
- A19 Series Remote Bulb Control
- A19 Series High Range Temperature Control
- A19 Series Thermostat for Crop Drying
- A19 Series Hot Water Temperature Control (Well Immersion)
- A19 Temperature Control Less Enclosure (SPDT, Close Differential
- A19 Series Thermostat for Hazardous Locations
- A19 Series Coiled Bulb Space Thermostat
- A19 Thermostat for Portable Heaters (Chain Mount and Drop Cord Electrical Connection)
- A19 Thermostat for Portable Cooling Applications (Chain Mount and Drop Cord Electrical Connection)
- A19 Series Automatic Changeover with Strap-On Mounting
- A19D Series Surface Mounted Temperature Control
- A19 Flange Mounted Duct Thermostat
- A19 Series Fan or Cutout Control (Liquid Expansion Bulb)
- A19ANC-1 Temperature Control with Rainproof Enclosure
- A19 Agricultural/Industrial Thermostat with NEMA 4X Enclosure
- A19 Industrial Thermostat (Watertight and Dusttight)
- A19 Temperature Control with NEMA 4X Enclosure (Remote Bulb)
- A19 Water Chiller Control with Locked Cut-Out/Adjustable Cut-In
- A19 Defrost Duration and Fan Delay Control
- A25 Series Warm Air Limit Control with Manual Reset
- A70 Series Four-Wire, Two-Circuit Temperature Control
- A72 Series Two-Pole Heavy Duty Temperature Controls (Adjustable Differential)
- A72 Series Cooling Tower or Evaporative Condenser Controls (Single-Stage Temperature Control with Outdoor Enclosure)
- A72AA Coiled Bulb Space Thermostat (Cooling)
- Single-Stage Electronic Temperature Controls
- A421 Series Electronic Temperature Controls
- A421 Series Electronic Temperature Controls with Integral Power Cord
- A421 Series Electronic Temperature Controls with Off-Cycle Defrost
- A421 Series Electronic Temperature Controls with Integral Cycle Timer
- MR Series Defrost Control Modules
- MR4PMUHV Electronic Temperature/Defrost Control with Relay Pack
- Multi-Stage Electromechanical Temperature Controls
- A28 Series Two-Stage Temperature Control
- A28 Series Two-Stage Flange Mounted Duct Thermostat
- A28 Two-Stage Industrial Thermostat (Watertight and Dusttight)
- A28 Two-Stage Temperature Control with Weatherproof Enclosure
- A28 Two-Stage Agricultural Thermostat with NEMA 4X Enclosure
- A36 Series Four-Stage Remote Bulb Thermostats
- S26 Series Switching Subbase
- T22/T25/T26 Series Line Voltage Wall Thermostat (Heating, Cooling, or Heating and Cooling)
- Typical Wiring Diagrams and Electrical Ratings for Line Voltage Thermostats
- T23 Series Fan Coil Thermostat (with Fan and System Selectors)
- T28 Series Fan Coil Thermostat (with or without Fan Selector Switches)
- T46 Series Fan Coil Thermostat
- Multi-Stage Electronic Temperature Controls
- Temperature Control Sensors and Accessories
- Standard Electromechanical Pressure Controls
- P10 Series Low Pressure Control
- P20 Series Air Conditioning/Pressure Cutout Control
- P29 Series Low Pressure Control with Time Delay
- P47 Series Steam Pressure Limit Control
- P67 Series Low Pressure Control
- P70, P72 Approximate Low Pressure Settings for Typical Applications
- P70, P72, and P170 Series Controls for Low Pressure Applications
- P70, P72, and P170 Series Controls for High Pressure Applications
- P70, P72, and P170 Series Controls for Dual Pressure Applications
- Single-Stage Electronic Pressure Controls
- Electromechanical Lube Oil and Differential Pressure Controls
- Electronic Lube Oil and Differential Pressure Controls
- Pressure Sensors and Accessories
- Refrigerant Sensors/Monitors
- Liquid Level and Flow Controls
- Motor Speed Controls
- Valves and Valve Accessories
- V43/V243 Series Pressure-Actuated Water-Regulating Valves
- V46 Series Pressure Actuated Water Regulating Valve
- V46N Series Reverse Acting Valve
- V46 Series Valve Sizing Information-90% Open Method
- V46 Series Valve Dimensions
- V47 Series Temperature Actuated Modulating Valve
- V47N Series Reverse Acting Valve
- V48 Series Three-Way Water Regulating Valve
- V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
- V148 Series Three-Way Pressure-Actuated Water-Regulating Valves
- V246 Series Two-Way Pressure-Actuated Water-Regulating Valves for High-Pressure Refrigerants
- V248 Series Three-Way Pressure-Actuated Water-Regulating Valves for High-Pressure Refrigerants
- STT Water Valve Renewal Kit for V46, V47, and V48 Series Valves
- Companion Flanges and Gaskets for V43, V46, and V47 Series Valves
- Relays and Transformers
- System 450 Control Series
- System 450™ Series Modular Controls
- System 450™ Series Control Module with Network Communications
- System 450™ Reset Control Modules with Real-Time Clock and Relay Output
- System 450™ Control Modules with Analog Output
- System 450™ Control Modules with Relay Output
- System 450™ Control Module with Hybrid Analog Output
- System 450™ Expansion Modules with Analog Output
- System 450™ Expansion Modules with Relay Output
- System 450™ Power Module
- System 450™ Compatible Sensors, Transducers, and Accessories
- Cross-Reference
- HVACR Product Offerings
- Sales Contact Information
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc. www.johnsoncontrols.com
R-58
MR4PMUHV Electronic Temperature/Defrost Control with Relay Pack
Description
The MR Series temperature controls are
designed for use with hot gas or electric heat
defrost in both refrigeration and freezer units.
Either time or temperature based defrost
termination may be selected.
The MR Series incorporates control functions
such as compressor control, defrost
management, fan management, and alarm
management.
Refer to the MR4PMUHV Electronic
Temperature/Defrost Control with Relay Pack
Product Bulletin (LIT-125190) for important
product application information.
Features
• single package provides the functionality of
multiple components at a cost-effective
price
• mounting flexibility allows the control and
relay pack to be mounted together or
separately, facilitating multiple
configurations
• accurate, interchangeable temperature
sensor provides reliable control
performance with up to 300 ft. of wiring (an
offset is provided for longer wiring)
• easily readable temperature display can
show either evaporator or process
temperature at the touch of a button
• heavy-duty relays allow direct control of
compressors, fans, defrost heaters, and
alarms
• alarm management functions provide both
local alarm codes and a relay closure that
can be used to trigger a remote alarm or a
dial-out modem
Applications
These relay pack mounted controls provide
direct control of compressors up to 2 hp,
electric heater loads of up to 20 amperes, and
evaporator fan loads of up to 3/4 hp. The need
for separate relays is eliminated in these
applications.
Selection Charts
Technical Specifications
MR4PMUHV Electronic Temperature/Defrost Control with Relay Pack
Product Code Number Description
MR4PMUHV-12C Relay pack defrost control with two
A99BB-200C sensors
Repair Parts
Product Code Number Description
MR4PM12C-12C Replacement control for use in relay pack
RP4MRUHV-1C Relay pack without control
A99BB-200C Sensor, cable length: 6.5 ft/1.98m
MR4PMUHV Electronic Temperature/Defrost Control
with Relay Pack (Part 1 of 2)
Frequency 60/50 Hz at 120/240 VAC
Power consumption 10 VA at 240 VAC, 5 VA at 120 VAC
Supply Level 120 and L1: 120 VAC +10%/-15%
240 and L1: 240 VAC +10%/-15%
Accuracy ± 1.8F°/± 1C°
A99 Sensor Cable 6.5 ft/1.98 m
Ambient
Operating
Conditions
MR4PMUHV-12C +14° to +111°F/-10° to +44°C;
derating 6.25% per 1°C to 60° C;
0 to 95% RH (noncondensing)
MR4PM12C-12C +14° to +140°F/-10° to +60°C;
0 to 95% RH (noncondensing)
RP4MRUHV-1C -40° to +111°F/ -40° to +44°C;
derating 6.25% per 1°C to 60° C;
0 to 95% RH (noncondensing)
Ambient
Storage
Conditions
MR4PMUHV-12C -22° to +176°F/-30° to +80°C
0 to 95% RH (noncondensing)
MR4PM12C-12C -22° to +176°F/-30° to +80°C
0 to 95% RH (noncondensing)
RP4MRUHV-1C -40° to +185°F/-40° to +85°C
0 to 95% RH (noncondensing)
Dimensions (H x W x D) 7.94 x 3.6 x 2.4 in./202 x 92 x 61 mm
Relay Electrical Ratings Note:
Ratings shown are for ambient operation at -40 to 44°C.
Derate electrical ratings 6.25% per 1°C (1.8°F) between
44°C (111°F) and 60°C (140°F).
Agency Listings UL Listed (File SA516, UL Guide SDFY;
cUL Guide SDFY7)
Shipping Weight 2.9 lb/1,320 g
Relay Electrical Ratings
24 120 208 240
SPST Compressor Relay
Horsepower Rating —11.5 2
AC Full Load Amperes —1611 12
AC Locked Rotor Amperes —9666 72
Pilot Duty (VA) 125 750 875 1,125
SPDT Fan Relay
Horsepower Rating — 1/3 1/2 3/4
AC Full Load Amperes — 7.2 5.65 6.9
AC Locked Rotor Amperes — 43.2 33.9 41.4
Pilot Duty (VA) 50 325 450 600
SPST Defrost Heater Relay
Horsepower Rating —11.5 2
AC Full Load Ampere —1611 12
AC Locked Rotor Amperes —9666 72
Non-Inductive Load Amperes —2020 20
Pilot Duty (VA) 125 750 825 1,125
SPST Alarm Relay
Non-Inductive Load Ampere 555 5
Pilot Duty (VA) — 125 250 325
MR4PMUHV Electronic Temperature/Defrost Control
with Relay Pack (Part 2 of 2)
MR4PMUHV Temperature Control
Technical Specifications (Continued)
Single-Stage Electronic Temperature Controls
Code No. LIT-1927380
In addition, the MR4PMUHV controls combine
the functionality of an electromechanical
thermostat, mechanical clock, defrost
termination device, and temperature readout
device with the accuracy of electronic
technology.