Electra WMZ 7 User manual

Service Manual

WMZ Series

REFRIGERANT

R407C

R22

COOLING ONLY

HEAT PUMP

SEPTEMBER 2005

Indoor Units Outdoor Units

WMZ 7 GCZ 7

WMZ 9 GCZ 9

WMZ 12 GCZ 12

WMZ 17 GCZ 17

WMZ 22 GCZ 24

LIST OF EFFECTIVE PAGES

Revision Y05-01 Service Manual - WMZ

LIST OF EFFECTIVE PAGES

Note: Changes in the pages are indicated by a “Revision#” in the footer of each effected page

(when none indicates no changes in the relevant page). All pages in the following list represent

effected/ non effected pages divided by chapters.

Dates of issue for original and changed pages are:

Original ....... 0 ........ 15 December 2004

Total number of pages in this publication is 151 consisting of the following:

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Page

No.

Revision

No. #

Title....................... 0

A ........................... 0

i............................. 0

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2-1 - 2-10.............. 0

3-1 - 3-2................ 0

4-1 - 4-3................ 0

5-1 - 5-98.............. 1

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14-1 – 14-41 ......... 0

15-1 – 15-5 ........... 0

Appendix -A...........0

• Zero in this column indicates an original page.

*Due to constant improvements please note that the data on this service manual can be modiﬁed with out notice.

**Photos are not contractual.

TABLE OF CONTENTS

Revision Y05-01Service Manual - WMZ

Table of Contents

1. INTRODUCTION ...................................................................................................1-1

2. PRODUCT DATA SHEET ......................................................................................2-1

3. RATING CONDITIONS..........................................................................................3-1

4. OUTLINE DIMENSIONS .......................................................................................4-1

5. PERFORMANCE DATA & PRESSURE CURVES ................................................5-1

6. SOUND LEVEL CHARACTERISTICS ..................................................................6-1

7. ELECTRICAL DATA..............................................................................................7-1

8. WIRING DIAGRAMS .............................................................................................8-1

9. ELECTRICAL CONNECTIONS.............................................................................9-1

10. REFRIGERATION DIAGRAMS.............................................................................10-1

11. TUBING CONNECTIONS......................................................................................11-1

12. CONTROL SYSTEM .............................................................................................12-1

13. TROUBLESHOOTING ..........................................................................................13-1

14. EXPLODED VIEWS AND SPARE PARTS LISTS.................................................14-1

15. OPTIONAL ACCESSORIES .................................................................................15-1

16. APPENDIX A

1-1

INTRODUCTION

Revision Y05-01Service Manual - WMZ

1. INTRODUCTION

1.1 General

The new WMZ split wall mounted range comprise the ST (cooling only)

and RC (heat pump) models, as follows:

• Cooling Only WMZ 7ST, WMZ 9ST, WMZ 12ST, WMZ 17ST,

WMZ 22ST

• Heat Pump WMZ 7RC, WMZ 9RC, WMZ 12RC, WMZ 17RC,

WMZ 22RC

The indoor WMZ units are available as LED display types only, featuring esthetic

design, compact dimensions, and low noise operation.

1.2 Main Features

• R22 and R407C models

• Microprocessor control.

• Infrared remote control with liquid crystal display.

• Cross ﬂow fan, allowing low noise level operation.

• Indoor coil with treated aluminum ﬁns and coating for improved efﬁciency.

• Easy access to the interconnecting tubing and wiring connections, so that

removing the front grill or casing is not necessary.

• Refrigerant pipes can be connected to the indoor unit from 6 different optional

directions.

• Automatic treated air sweep.

• Low indoor and outdoor noise levels.

• Easy installation and service.

1-2

INTRODUCTION

Revision Y05-01 Service Manual - WMZ

1.3 Indoor Unit

The indoor unit is wall mounted, and can be easily ﬁtted to many types of residential

and commercials applications.

It includes:

• Casing with air inlet and outlet grills.

• tangential fan.

• Coil with treated aluminum ﬁns.

• Motorized ﬂaps

• Multi-speed motor with internal protection

• Advanced electronic control box assembly

• Interconnecting wiring terminal block

• Mounting plate

1.4 Filtration

The WMZ series presents several types of air ﬁlters:

• Easily accessible, and re-usable pre-ﬁlters (mesh)

• Pre-charged electrostatic ﬁlter (disposable) – optional

• Active carbon ﬁlter (disposable) – optional

1.5 Control

The microprocessor indoor controller, and an infrared remote control, supplied as

standard, provides complete operating function and programming. For further details

please refer to the Operation Manual, Appendix A.

1.6 Outdoor Unit

The WMZ outdoor units can be installed as ﬂoor or wall mounted units by using a

wall supporting bracket. The metal sheets are protected by anti- corrosion paint work

allowing long life resistance. All outdoor units are pre-charged. For further information

please refer to the Product Data Sheet, Chapter 2.

It includes :

• A Rotary Compressor mounted in a soundproofed compartment :

• Axial fan.

• Outdoor coil with hydrophilic louver ﬁns for RC units.

• Outlet air fan grill.

• Service valves” ﬂare” type connection.

• Interconnecting wiring terminal block.

1-3

INTRODUCTION

Revision Y05-01Service Manual - WMZ

1.7 Tubing Connections

Flare type interconnecting tubing to be produced on site.

For further details please refer to the Installation Manual, Appendix A.

1.8 Accessories

ASK (All Season Kit):

For low ambient working conditions in cooling, an ASK can be installed inside the

outdoor unit. This kit allows cooling operation down to outdoor temp of -10 ºC by

gradually controlling the outdoor fan speed motor.

RCW Wall Mounted Remote Control

The RCW remote control is mounted on the wall, and controls the unit either as an

infrared remote control or as a wired controller. The wired controller can control up to

10 Indoor units with the same program settings and adjustments.

For further details please refer to Optional Accessories, Chapter 15.

1.9 Inbox Documentation

Each unit is supplied with its own installation and operation manuals.

1.10 Matching Table

1.10.1 R407C / R22

OUTDOOR UNITS

INDOOR UNITS

MODEL REF’ WMZ 7 WMZ 9 WMZ 12 WMZ 17 WMZ 22

GCZ 7 ST/ RC R407C/R22 √

GCZ 9 ST/ RC R407C/R22 √

GCZ 12 ST/ RC R407C/R22 √

GCZ 17 ST / RC R407C/R22 √

GCZ 22 ST / RC R407C/R22 √

2-1

PRODUCT DATA SHEET

Revision Y05-01Service Manual - WMZ

1. PRODUCT DATA SHEET

1.1 R407C

Model Indoor Unit WMZ-7

Model Outdoor Unit GCZ-7

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (1) Btu/hr 6860 6860 7640

kW 2.01 2.01 2.24

Power input (1) kW 0.77 0.77 0.72

EER (Cooling) or COP(Heating) (1) W/W 2.61 2.61 3.11

Energy efﬁciency class DDD

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 3.4 3.4 3.2

Starting current A 22

Circuit breaker rating A 10

INDOOR

Fan type & quantity Cross ﬂow x 1

Fan speeds H/M/L RPM 970/750

Air ﬂow(2) H/M/L m3/hr 360/275

External static pressure Min-Max Pa 0

Sound power level (3) H/M/L dB(A) 47/41

Sound pressure level(4) H/M/L dB(A) 34/28

Moisture removal l/hr 0.8

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 815*280*170

Weight kg 8

Package dimensions WxHxD mm 890*240*340

Packaged weight kg 11.5

Units per pallet units 32

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary, TOSHIBA PG135X1C-4DT2

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 555

Air ﬂow H/L m3/hr 1310

Sound power level H/L dB(A) 63

Sound pressure level(4) H/L dB(A) 53

Dimensions WxHxD mm 760*545*245

Weight kg 30 31

Package dimensions WxHxD mm 880*610*310

Packaged weight kg 32.5

Units per pallet Units 12

Stacking height units 3 levels

Refrigerant type R407C

Refrigerant chargless distance kg/m 0.59kg/4m

Additional charge per 1 meter g/m 4m<Lin<8m:+5g/m Lin>8m:+9g/m

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)

Suction line In.(mm) Ф 3/8”(9.53)

Max.tubing length m. Max.10

Max.height

difference m. Max.7

Operation control type Remote control

Heating elements kW

Others

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.

(2) Airﬂow in ducted units; at nominal external static pressure.

(3) Sound power in ducted units is measured at air discharge.

(4) Sound pressure level measured at 1 meter distance from unit.

2-2

PRODUCT DATA SHEET

Revision Y05-01 Service Manual - WMZ

Model Indoor Unit WMZ-9

Model Outdoor Unit GCZ-9

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (1) Btu/hr 8700 8700 9380

kW 2.55 2.55 2.75

Power input (1) kW 1.05 1.05 1.02

EER (Cooling) or COP(Heating) (1) W/W 2.43 2.43 2.7

Energy efﬁciency class EEE

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 4.6 4.6 4.6

Starting current A 26

Circuit breaker rating A 10

INDOOR

Fan type & quantity Cross ﬂow x 1

Fan speeds H/M/L RPM 1070/860

Air ﬂow (2) H/M/L m3/hr 390/310

External static pressure Min-Max Pa 0

Sound power level (3) H/M/L dB(A) 50/45

Sound pressure level(4) H/M/L dB(A) 38/33

Moisture removal l/hr 1

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 815*280*170

Weight kg 8

Package dimensions WxHxD mm 890*240*340

Packaged weight kg 11.5

Units per pallet units 32

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary, TOSHIBA PG170X1C-4FS2

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 655

Air ﬂow H/L m3/hr 1370

Sound power level H/L dB(A) 66

Sound pressure level(4) H/L dB(A) 56

Dimensions WxHxD mm 760*545*245

Weight kg 31 32

Package dimensions WxHxD mm 880*610*310

Packaged weight kg 33.5

Units per pallet Units 12

Stacking height units 3 levels

Refrigerant type R407C

Refrigerant chargless distance kg/m 0.83kg/4m

Additional charge per 1 meter g/m 4m<Lin<8m:+5g/m Lin>8m:+9g/m

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)

Suction line In.(mm) Ф 3/8”(9.53)

Max.tubing length m. Max.10

Max.height

difference m. Max.7

Operation control type Remote control

Heating elements kW

Others

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.

(2) Airﬂow in ducted units; at nominal external static pressure.

(3) Sound power in ducted units is measured at air discharge.

(4) Sound pressure level measured at 1 meter distance from unit.

2-3

PRODUCT DATA SHEET

Revision Y05-01Service Manual - WMZ

Model Indoor Unit WMZ-12

Model Outdoor Unit GCZ-12

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity(1) Btu/hr 10610 10610 11430

kW 3.11 3.11 3.35

Power input (1) kW 1.25 1.25 1.28

EER (Cooling) or COP(Heating) (1) W/W 2.49 2.49 2.62

Energy efﬁciency class EEE

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 5.5 5.5 5.9

Starting current A 33

Circuit breaker rating A 15

INDOOR

Fan type & quantity Cross ﬂow x 1

Fan speeds H/M/L RPM 1270/1000

Air ﬂow(2) H/M/L m3/hr 450/385

External static pressure Min-Max Pa 0

Sound power level (3) H/M/L dB(A) 53/45

Sound pressure level(4) H/M/L dB(A) 41/33

Moisture removal l/hr 1.5

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 815*280*170

Weight kg 9

Package dimensions WxHxD mm 890*240*340

Packaged weight kg 12

Units per pallet units 32

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary, TOSHIBA PG225X2C-4FS

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 735

Air ﬂow H/L m3/hr 1550

Sound power level H/L dB(A) 68

Sound pressure level(4) H/L dB(A) 58

Dimensions WxHxD mm 760*545*245

Weight kg 36 37

Package dimensions WxHxD mm 880*610*310

Packaged weight kg 39.5

Units per pallet Units 12

Stacking height units 3 levels

Refrigerant type R407C

Refrigerant chargless distance kg/m 1.01kg/4m

Additional charge per 1 meter g/m 4m<Lin<8m:+5g/m Lin>8m:+9g/m

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)

Suction line In.(mm) Ф 1/2”(12.7)

Max.tubing length m. Max.15

Max.height

difference m. Max.7

Operation control type Remote control

Heating elements kW

Others

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.

(2) Airﬂow in ducted units; at nominal external static pressure.

(3) Sound power in ducted units is measured at air discharge.

(4) Sound pressure level measured at 1 meter distance from unit.

2-4

PRODUCT DATA SHEET

Revision Y05-01 Service Manual - WMZ

Model Indoor Unit WMZ-17

Model Outdoor Unit GCZ-17

Installation Method of Pipe Flared

Characteristics Units Cooling Only Cooling Heating

Capacity (1) Btu/hr 17740 18080 18770

kW 5.2 5.3 5.5

Power input (1) kW 1.99 2.03 1.95

EER (Cooling) or COP(Heating) (1) W/W 2.61 2.61 2.82

Energy efﬁciency class D D D

Power supply V/Ph/Hz 230V/Single/50Hz

Rated current A 9.5 9.8 9.4

Starting current A 45

Circuit breaker rating A 15

INDOOR

Fan type & quantity Cross ﬂow x 1

Fan speeds H/M/L RPM 1100/850

Air ﬂow (2) H/M/L m3/hr 830/580

External static pressure Min-Max Pa 0

Sound power level (3) H/M/L dB(A) 60/54

Sound pressure level(4) H/M/L dB(A) 46/40

Moisture removal l/hr 2.2

Condensate drain tube I.D mm 16

Dimensions WxHxD mm 1115*330*200

Weight kg 13

Package dimensions WxHxD mm 1200*420*300

Packaged weight kg 17

Units per pallet units 16

Stacking height units 8 levels

OUTDOOR

Refrigerant control Capillary tube

Compressor type, model Rotary, TOSHIBA PG330X2CS-4KT3

Fan type & quantity Propeller(direct) x 1

Fan speeds H/L RPM 920

Air ﬂow H/L m3/hr 2160

Sound power level H/L dB(A) 66

Sound pressure level(4) H/L dB(A) 55

Dimensions WxHxD mm 795*610*290

Weight kg 42 43

Package dimensions WxHxD mm 945*655*395

Packaged weight kg 45 51

Units per pallet Units 9

Stacking height units 3 levels

Refrigerant type R407C

Refrigerant chargless distance kg/m 1.3kg/7.5m 1.23kg/7.5m

Additional charge per 1 meter g/m 4m<Lin<8m:+5g/m Lin>8m:+15g/m

Connections between

units

Liquid line In.(mm) Ф 1/4”(6.35)

Suction line In.(mm) Ф 1/2”(12.7)

Max.tubing length m. Max.15

Max.height

difference m. Max.7

Operation control type Remote control

Heating elements kW

Others

(1) Rating conditions in accordance with ISO 5151 and ISO 13253 (for ducted units) and EN14511.

(2) Airﬂow in ducted units; at nominal external static pressure.

(3) Sound power in ducted units is measured at air discharge.

(4) Sound pressure level measured at 1 meter distance from unit.

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