McQuay M5ACV 030 CR Technical manual

M5ACV-2009

Air-Cooled Chiller

(R410A Inverter Series)

Models: M5ACV 030 CR

M5ACV 055 CR

M5ACV 075 CR

M5ACV 100 CR

M5ACV 135 CR

M5ACV 210 CR

Catalog

Table of Contents

Nomenclature ....................................................................................................................1

- Product Line up

Features ............................................................................................................................ 3

Application Information...................................................................................................... 4

- Refrigerant Circuit Diagram

- Chiller Panel Controller

- Precautions and Installation

Sound Data .....................................................................................................................49

Selection Process ........................................................................................................... 50

- Water Pressure drop vs Flow rate

- Glycol

Engineering and Physical Data ....................................................................................... 53

- Specifications

Performance Data ........................................................................................................... 62

Dimensional Data ............................................................................................................ 70

Electrical Data .................................................................................................................73

Wiring Diagrams.............................................................................................................. 76

Servicing and Maintenance ............................................................................................. 81

Troubleshooting ............................................................................................................... 82

Exploded View and Part List ........................................................................................... 91

Note: Installation and maintenance are to be performed only by qualified personnel who are

familiar with local codes and regulations, and experienced with this type of equipment.

Caution: Sharp edges and coil surfaces are a potential injury hazard. Avoid contact with them.

Warning: Moving machinery and electrical power hazards. May cause severe personal injury

or death. Disconnect and lock off power before servicing equipment.

Bulletin illustrations cover the general appearance of McQuay International products at the time of publication.

We reserve the right to make change in design and construction at any time without notice.

This manual supercedes M5ACV-2008

Nomenclature

MAC 100 C R -F X AA

Series

C : C series

Model Type

R : heatpump

Omitted if cooling

Capacity

100 : 100,000 Btu/h

Model Name

AC : Air cooled mini

chiller

Brand

McQuay

Electrical

A : 220-240V/1Ph/50Hz

F : 380-415V/3Ph/50Hz

Type of ref. connection

X : Not applicable

Production spec

variation

5 V

Type

Inverter

Refrigerant

5 : R410A

M5ACV Product Line-up

Wired handset WCCH

Gold Fin

Isolator Switch

Terminal block

Scroll compressor

Capillary tube (Normal circuit)

Capillary tube (Normal & Inverter circuit)

EXV (Inverter circuit)

EXV (Normal & Inverter circuit)

Pump only

Brass adaptor BSPT 1 1/4

Brass adaptor BSPT 1

Brass adaptor BSPT 1 1/2

030CR AXAA X X X X X X X

055CR FXAA X X X X X X X

075CR FXAA X X X X X X X

100CR FXAA X X X X X X X X

135CR FXAA X X X X X X X X

210CR FXAA X X XXXXX X

M5ACV

Classification

Heat pump model

Nomenclature

Product Line Up

Features

True Dual Circuits BPHE

The true dual BPHE puts the secondary circuit (water) in contact with 2 primary circuits (refrigerant). So even

if one primary circuit is shut off, each secondary channel is still in contact with a primary channel.

Inverter Compressor

Inverter compressor is programmed to run at the optimum speed, which is regulated by the input frequency

as it can varies according to the heat load requirement.

Inverter advantages are :

•Less start & stop – Frequency regulated compressor resulting in lesser in the sense of start and stop of

compressor, which greatly reduces the energy consumption.

•Fast cooling/heating – Inverter compressor has the ability to produce faster cooling/heating capacity at

the frequency higher than the dominant capacity frequency.

•Smart loading/unloading – with the integration of built in system algorithm; inverter compressor could

control the system’s loading and unloading sophisticatedly.

•Better compressor reliability – Reliability of inverter compressor is always better since there is lesser on/

off of the system especially during low load condition.

Elimination of Water Tank

Inverter system provides constant water temperature band, or much lesser water temperature fluctuation.

With this, water tank of the mini chiller system can be eliminated.

Built in Fan Speed

The built in algorithm now controls fan speed, resulting in cost saving since installation of external FSC (Fan

speed controller) can be exempted.

Safety Proctection

•High & low pressure switches

•Anti-freeze protection sensor

•Discharge temperature sensor

•Over pressure relief valve

•Water pressure differential switch

•Anti-freeze heater on BPHE

•Compressor, water pump overload protector

Anti Corrosion Heat Exchanger

Gold aluminum fin is offered as standard material of the condenser heat exchanger of this series of chiller.

Modular Installation

A network up to 50chillers in a system is possible. Control on the operation of the chillers will be done through

the microprocessor controller. The external water piping connection can be made either from the left or right

side of the unit.

Application Information

Refrigerant Circuit Diagram

Model : M5ACV 030CR

M5ACV030CR

Water / Refrigerant Circuit Diagram

EXV

FIL

TER

DRIER

SUCTION

ACCUMULA

COMPRESSOR

CHARGE

COMPENSA

BPHE

TER

OUT

TER

TER PUMP

EXP

ANSION T

ANK

EXV

FIL

TER

DRIER

SUCTION

ACCUMULA

COMPRESSOR

LIQUID RECEIVER

BPHE

TER

OUT

TER

TER PUMP

EXP

ANSION

ANK

Model : M5ACV 055/075CR

M5ACV055CR

Water / Refrigerant Circuit Diagram

FIN TUBE

HEAT EXCHANGER

(SYSTEM 1)

FIN TUBE

HEAT EXCHANGER

(SYSTEM 2)

4-WAY VALVE

VARIABLE SPEED

COMPRESSOR

SUCTION

ACCUMULATOR

SUCTION

ACCUMULATOR

WATER

OUT

WATER

LIQUID

RECEIVER

LIQUID

RECEIVER

EXV

HEATING

CAP

TUBE

FILTER

DRIER

FILTER

DRIER

COOLING

CAP

TUBE

4-WAY VALVE

CHECK

VALVE

CHECK

VALVE

FIN TUBE

HEAT EXCHANGER

(SYSTEM 1)

FIN TUBE

HEAT EXCHANGER

(SYSTEM 2)

4-WAY VALVE

VARIABLE SPEED

COMPRESSOR

SUCTION

ACCUMULATOR

SUCTION

ACCUMULATOR

WATER

OUT

LIQUID

RECEIVER

LIQUID

RECEIVER

EXV

HEATING

CAP

TUBE

FILTER

DRIER

FILTER

DRIER

COOLING

CAP

TUBE

4-WAY VALVE

CHECK

VALVE

CHECK

VALVE

EXPANSION

TANK

WATER PUMP

WATER

EXPANSION

TANK

WATER PUMP

M5ACV 100CR

Refrigerant Circuit Diagram

M5ACV 135CR

Refrigerant Circuit Diagram

Model : M5ACV 100CR

Model : M5ACV 135CR

FIN TUBE

HEAT EXCHANGER

(SYSTEM 1)

VARIABLE SPEED

COMPRESSOR

SUCTION

ACCUMULATOR

WATER

LIQUID

RECEIVER

EXV

FILTER

DRIER

CHECK

VALVE

EXV

CHECK

VALVE

COMPRESSOR

4-WAY VALVE

OIL

SEPARATOR

OIL

SEPARATOR

OIL

RETURN

TUBE

TWIN

TUBE JOINT

FILTER

DRIER

LIQUID

RECEIVER

SUCTION

ACCUMULATOR

4-WAY VALVE

FIN TUBE

HEAT EXCHANGER

(SYSTEM 2)

TWIN

TUBE JOINT

FIN TUBE

HEAT EXCHANGER

(SYSTEM 1)

FIN TUBE

HEAT EXCHANGER

(SYSTEM 2)

4-WAY VALVE

VARIABLE SPEED

COMPRESSOR

SUCTION

ACCUMULATOR

SUCTION

ACCUMULATOR

WATER

OUT

LIQUID

RECEIVER

LIQUID

RECEIVER

EXV

FILTER

DRIER

FILTER

DRIER

4-WAY VALVE

CHECK

VALVE

CHECK

VALVE

TWIN

TUBE JOINT

OIL

SEPARATOR

OIL

RETURN

TUBE

OIL

SEPARATOR

COMPRESSOR

TWIN

TUBE JOINT

EXV

WATER

EXPANSION

TANK

WATER PUMP

Model : M5ACV 210CR

M5ACV 210CR

Refrigerant Circuit Diagram

Chiller Panel Controller

1. Safety Consideration

Only specially trained and technicians and installers are authorized to install and service this

equipment.

1.1 General Installation Recommendations

•Only supply DC voltage (9-17V, typically 12V, maximum current 200mA) as a power source

to the device.

•Input contact voltage supply should limit to 12VDC or 24VAC.

•Isolated all the low voltage wiring (communication bus, etc) from high voltage power supply

wiring.

2. General Description

2.1 General

The chiller panel controller is designed to control the chiller operation. This device allows the user

to have customized control for each connected unit.

2.2 Features

The requirements of user friendly and easy to use have been taken into account in designing this

chiller panel controller. It can do the task as follow:

•Whole system configuration

•Unique parameter settings

•Operation status display

•Tracing fault record (easy in hardware troubleshooting)

The display is shown in an 8-lines graphical LCD display. There are 8 dedicated keys available

in the panel,

•Menu selection

•Navigation on the screen

•Modification of the selected value

During first start-up, the panel will have a default configuration (timer schedule, set point,

miscellaneous settings, etc). User can do the changes on that particular configuration later.

2.3 Panel Position

The chiller panel controller can be installed anywhere, as long as it is easy to accessed by

authorized personnel.

The requirements of installation are:

•Avoid exposure to shocks

•Avoid any source of electromagnetic pollution

•Avoid installation on uneven vertical surface

2.4 Operation Environmetal Condition

• Temperature:

-10°C to 47°C operating temperature

-20°C to 85°C storage temperature

•Relative Humidity:

0 to 95% non-condensing

3. Hardware Description

Legend

3.1 Key Explanation

The 2 navigation keys permit item selection and modifying the selected value.

ENTER key is used to execute the navigation instruction

ESC key is used to cancel the navigation instruction

Shortcut key to switch the operation mode in the summary pages

Shortcut key to trigger ON/OFF in the summary pages

Shortcut key to show fault / alarm in the summary pages

1 & 2

Navigation key

3 Execute instruction key

4 Cancel instruction key

5 Switching to heat mode shortcut key

6 Switching to cool mode shortcut key

7 Toggle ON/OFF shortcut key

8 Show alarm key

9 Graphical LCD display

10 ON/OFF indicato

Legend

1 & 2

Chiller terminal unit connection

3Not available

4 CMOS reset jumper (JH2)

5 Chiller bus resistor or configuration (JH3)

6Not available

7Not available

8Not available

9Not available

10 Backup batter

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