McQuay M4MC125D - User Manual

MDB - D - 2004
Ducted Blower Split Systems
Models: MDB 075 - 500D
 MDB 075 - 500DR
MDB 125/150 D/DR
MDB 200 - 500 D/DR
MMC 075 - 150 D/DR

McQuay M4MC125D Specifications

General

Brand	McQuay
Model	M4MC125D
Category	Air Conditioner
Language	English

Summary

Ducted Blower Split Systems

General Specifications

Blower, Fan And Motor

Indoor unit uses metal blower; outdoor unit uses 6-blade aluminum propeller fan with Class F motor.

Compressor

High efficiency, refrigerant-cooled Scroll compressors with overload protection and crankcase heater.

Safety Controls

Outdoor units feature auto reset high/low pressure cut-outs and phase protector.

Specifications

Heatpump 50 Hz (R22)

Heatpump 50 Hz (R407 C)

Cooling only 50 Hz (R407 C)

Cooling only 220 V - 60 Hz (R22)

Cooling only 460 V - 60 Hz (R22)

Cooling only 50 Hz (R22) Very High Static

Performance Tables

MODEL: MDB075 D vs. MMC075 D

Cooling capacity performance data for MDB075D and MMC075D models.

MODEL: MDB100 D vs. MMC100 D

Cooling capacity performance data for MDB100D and MMC100D models.

MODEL: MDB125 D vs. MMC125 D

Cooling capacity performance data for MDB125D and MMC125D models.

MODEL: MDB150 D2 vs. MMC075 D x 2

Cooling capacity performance data for MDB150D2 and MMC075D x 2 models.

MODEL: MDB200 D2 vs. MMC100 D x 2

Cooling capacity performance data for MDB200D2 and MMC100D x 2 models.

MODEL: MDB250 D2 vs. MMC125 D x 2

Cooling capacity performance data for MDB250D2 and MMC125D x 2 models.

MODEL: MDB300 D2 vs. MMC150 D x 2

Cooling capacity performance data for MDB300D2 and MMC150D x 2 models.

MODEL: MDB400 D4 vs. MMC100 D x 4

Cooling capacity performance data for MDB400D4 and MMC100D x 4 models.

MODEL: MDB500 D4 vs. MMC125 D x 4

Cooling capacity performance data for MDB500D4 and MMC125D x 4 models.

R22 50 Hz HEATING CAPACITY

MODEL: MDB075 DR vs. MMC075 DR

Heating capacity data for MDB075DR and MMC075DR models.

MODEL: MDB100 DR vs. MMC100 DR

Heating capacity data for MDB100DR and MMC100DR models.

MODEL: MDB125 DR vs. MMC125 DR

Heating capacity data for MDB125DR and MMC125DR models.

MODEL: MDB150 DR vs. MMC150 DR

Heating capacity data for MDB150DR and MMC150DR models.

MODEL: MDB150 DR2 vs. MMC075 DR x 2

Heating capacity data for MDB150DR2 and MMC075DR x 2 models.

MODEL: MDB200 DR2 vs. MMC100 DR x 2

Heating capacity data for MDB200DR2 and MMC100DR x 2 models.

MODEL: MDB250 DR2 vs. MMC125 DR x 2

Heating capacity data for MDB250DR2 and MMC125DR x 2 models.

MODEL: MDB300 DR2 vs. MMC150 DR x 2

Heating capacity data for MDB300DR2 and MMC150DR x 2 models.

R407 C 50 Hz Cooling Capacity

MODEL: MDB075 DR vs. M4 MC075 DR

Cooling capacity data for MDB075DR and M4MC075DR models.

MODEL: MDB100 DR vs. M4 MC100 DR

Cooling capacity data for MDB100DR and M4MC100DR models.

MODEL: MDB125 DR vs. M4 MC125 DR

Cooling capacity data for MDB125DR and M4MC125DR models.

MODEL: MDB150 DR2 vs. M4 MC075 DR x 2

Cooling capacity data for MDB150DR2 and M4MC075DR x 2 models.

MODEL: MDB200 DR2 vs. M4 MC100 DR x 2

Cooling capacity data for MDB200DR2 and M4MC100DR x 2 models.

MODEL: MDB250 DR2 vs. M4 MC125 DR x 2

Cooling capacity data for MDB250DR2 and M4MC125DR x 2 models.

MODEL: MDB300 DR2 vs. M4 MC150 DR x 2

Cooling capacity data for MDB300DR2 and M4MC150DR x 2 models.

MODEL: MDB400 DR4 vs. M4 MC100 DR x 4

Cooling capacity data for MDB400DR4 and M4MC100DR x 4 models.

MODEL: MDB500 DR4 vs. MMC125 DR x 4

Cooling capacity data for MDB500DR4 and MMC125DR x 4 models.

Sound Power Level

Power Table

Heating (R22)

Heating (R407 C)

Cooling (R22)

Cooling (R407 C)

MOTOR AND BLOWER DESIGN SPECIFICATIONS FOR 50 Hz MODELS

MOTOR AND BLOWER DESIGN SPECIFICATIONS FOR 60 Hz MODELS

Blower Performance Curves

MDB 075 D

Performance curve for MDB 075D blower.

MDB 100 D

Performance curve for MDB 100D blower.

MDB 125 D

Performance curve for MDB 125D blower.

MDB 150 D

Performance curve for MDB 150D blower.

MDB 200 D

Performance curve for MDB 200D blower.

MDB 250 D

Performance curve for MDB 250D blower.

MDB 300 D

Performance curve for MDB 300D blower.

MDB 400 D

Performance curve for MDB 400D blower.

MDB 500 D

Performance curve for MDB 500D blower.

MDB 075 D;DR VERY HIGH STATIC

Performance curve for MDB 075D/DR VERY HIGH STATIC blower.

MDB 100 D;DR VERY HIGH STATIC

Performance curve for MDB 100D/DR VERY HIGH STATIC blower.

MDB 125 D;DR VERY HIGH STATIC

Performance curve for MDB 125D/DR VERY HIGH STATIC blower.

MDB 150 D;DR VERY HIGH STATIC

Wiring Diagrams (Cooling)

MODEL: MDB 075 D vs MMC 075 D (WITH U1.4 MAINBOARD AND SLM3 HANDSET)

MODEL: MDB 100 D vs MMC 100 D (WITH U1.4 MAINBOARD AND SLM3 HANDSET)

MODEL: MDB 125 D vs. MMC 125 D ( WITH U1-125 MAINBOARD AND SLM3 HANDSET )

MODEL: MDB 150 D vs. MMC 150 D (WITH U1-125 MAINBOARD AND SLM3 HANDSET)

MODEL: MDB 150 D2 vs. MMC 075 D x 2

MODEL: MDB 200 D2 vs. MMC 100 D x 2

MODEL: MDB 250 D2 vs. MMC 125 D x 2

Wiring Diagrams (Heatpump)

MODEL: MDB 075 DR vs. MMC 075 DR (WITH U1.4; SLM3 HANDSET)

MODEL: MDB 100 DR vs. MMC 100 DR (WITH U1.4; SLM3 HANDSET)

MODEL: MDB 125 DR vs. MMC 125 DR (WITH U1-125 SLM3 HANDSET)

MODEL: MDB 150 DR vs. MMC 150 DR (WITH U1-125 SLM3 HANDSET)

MODEL: MDB 150 DR2 vs. MMC 075 DR x 2

MODEL: MDB 200 DR2 vs. MMC 100 DR x 2

MODEL: MDB 250 DR2 vs. MMC 125 DR x 2

MODEL: MDB 300 D2 vs. MMC 150 D x 2 (WITH SEQUENTIAL CONTROLLER)

Refrigerant Circuit Diagram

MODEL: MMC 075 D;100 D;125 D;150 D

MODEL: MMC 075 DR;100 DR;125 DR;150 DR (R22) M4 MC 75 DR;100 DR;125 DR;150 DR (R407 C)

VACUUMING AND CHARGING

GUIDELINES OF FIELD-CHARGING AIR CONDITIONING SYSTEMS WITH SCROLL COMPRESSORS

FIELD-CHARGING - SOME PRECAUTION POINTS

Precautions for field charging, especially regarding compressor lubrication and temperature.

Special Precautions For R407 c

4) Check List Before Installation;Servicing

5) Handling And Installation Guidelines

Precautionary measures for R407C handling, including filter-dryer installation and avoiding moist air.

Servicing And Maintenance

CAUTION

CAUTION FOR USE

MAINTENANCE

Guidance on cleaning the outdoor unit heat exchanger for optimal performance.

Operation

ELECTRICAL CONNECTION

Wiring regulations and precautions for proper electrical connections.

GENERAL PRECAUTION

OPERATIONAL CHECK

SEQUENTIAL CONTROLLER LCD OPERATING INSTRUCTIONS

2. OPERATING GUIDE

3. ERROR CODE

List and explanation of error codes displayed on the LCD panel.

Troubleshooting

1. Fan does not work

2. Fan works, but compressor does not work

3. Both fan and compressor does not work

4. Air-conditioner works but cooling not satisfactory

No Cooling

Flowchart for diagnosing and resolving 'No Cooling' issues.

Insufficient Cooling

Flowchart for diagnosing and resolving 'Insufficient Cooling' problems.

High Discharge Pressure

Troubleshooting steps for issues related to high discharge pressure.

Low Discharge Pressure

Troubleshooting steps for issues related to low discharge pressure.

Noisy Operation

Diagnosing and fixing causes of noisy operation in the unit.