
Do you have a question about the Johnson Controls MR4PMUHV and is the answer not in the manual?
| frequency | 60 Hz |
|---|---|
| power consumption | 5VA @240, 5VA @120 |
| ambient operating conditions | +14 to +111°F (-10 to +44°C); derate 6.25% per 1°C from 45°C to 60°C; 0 to 95 % RH (non-condensing) |
|---|---|
| ambient storage conditions | -22 to +176°F (-30 to +80°C); 0 to 95 % RH (non-condensing) |
| accuracy | ± 1.8F° ( ± 1C°) |
| dimensions | 7.94 x 3.6 x 2.4 in. (202 x 92 x 61 mm) |
|---|---|
| shipping weight | 2.9 lb (1320g) |
| A99 sensor cable length | 6.6 ft (2m) |
| ambient operating conditions | +14 to +140°F (-10 to +60°C); 0 to 95 % RH (non-condensing) |
|---|---|
| ambient storage conditions | -22 to +176°F (-30 to +80°C); 0 to 95 % RH (non-condensing) |
| accuracy | ± 1.8F° ( ± 1C°) |
| ambient operating conditions | -40 to +111°F (-40 to +44°C); derate 6.25% per 1°C from 45°C to 60°C; 0 to 95 % RH (non-condensing) |
|---|---|
| ambient storage conditions | -40 to +185°F (-40 to +85°C); 0 to 95 % RH (non-condensing) |
| accuracy | ± 1.8F° ( ± 1C°) |
Overview of the control's function in refrigeration and highlights key features and benefits.
Defines setpoints, differential, cycle delay, and sensor failure responses for temperature control.
Configures high/low temperature alarms, alarm time delay, and alarm differential for alerts.
Manages hot gas or electric heat defrost cycles and termination methods.
Controls evaporator fan operation modes and start-up delays after defrost.
Enables keyboard locking for setting protection and initiates system self-tests.
Allows manual initiation of deep freeze and defrost cycles.
Details the LED display and buttons for programming and activating features.
Instructions for mounting the MR4PMUHV control as one integrated unit.
Guidance on separating, removing, and individually mounting control module and relay pack.
Details how to wire temperature sensors and binary input connections.
Provides guidelines and diagrams for wiring the relay pack terminals.
Explains normal operation, display navigation, and how to lock/unlock programming access.
Guides users on modifying setpoint values and other control function settings.
Procedures for initiating manual self-tests, defrost, and deep freeze cycles.
Details Setpoint, Differential, Cycle Delay, Deep Freezing Time, and Sensor Failure Operation.
Explains High/Low Alarms, Alarm Differential, and Alarm Time Delay settings.
Manages defrost mode, termination, timing, and display settings.
Controls evaporator fan operation modes and start-up delays after defrost.
Defines how relays respond to binary input signals and associated time delays.
Comprehensive table listing all programmable functions, their ranges, and factory-set values.
Lists alarm/fault codes, their conditions, and corresponding system status indications.
Provides a table of item codes for ordering parts and their respective shipping weights.
Details electrical specifications for single-pole, double-throw fan relays.
Provides electrical ratings for single-pole, single-throw defrost and compressor relays.
Lists electrical specifications for single-pole, single-throw alarm relays.
Summarizes product details, frequency, power, accuracy, and sensor input range.
Covers operating/storage conditions, dimensions, agency approvals, and emissions compliance.
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