MAXA i-HP 0235, User'S And Installer'S Manual

N

‐

i

‐

HP

Inverter

air

/

water

heat

pump

chillers

with

axial

fans

2

INDEX

1

AIM

AND

CONTENTS

OF

THIS

MANUAL

...............................................................................................................................

4

1.1

HOW

TO

KEEP

THIS

MANUAL

.................................................................................................................................................

4

1.2

GRAPHIC

SYMBOLS

................................................................................................................................................................

4

2

SAFETY

LAWS

......................................................................................................................................................................

4

3

PERMITTED

USES

................................................................................................................................................................

4

4

GENERAL

SAFETY

GUIDELINES

.............................................................................................................................................

5

4.1

WORKERS’

HEALTH

AND

SAFETY

............................................................................................................................................

5

4.2

PERSONAL

SAFETY

EQUIPMENTS

...........................................................................................................................................

5

4.3

SAFETY

SYMBOLS

...................................................................................................................................................................

5

4.4

REFRIGERANT

SAFETY

DATA

SHEET

........................................................................................................................................

6

5

TECHNICAL

CHARACTERISTICS

.............................................................................................................................................

7

5.1

FRAME

...................................................................................................................................................................................

7

5.2

REFRIGERANT

CIRCUIT

...........................................................................................................................................................

7

5.3

COMPRESSORS.......................................................................................................................................................................

7

5.4

AIR

‐

SIDE

EXCHANGERS

...........................................................................................................................................................

7

5.5

FAN

MOTOR

...........................................................................................................................................................................

7

5.6

USER

‐

SIDE

HEAT

EXCHANGERS

..............................................................................................................................................

7

5.7

ELECTRICAL

CONTROL

PANEL

BOARD

....................................................................................................................................

7

5.8

CONTROL

SYSTEM

..................................................................................................................................................................

7

5.9

MONITORING

AND

PROTECTION

DEVICES

.............................................................................................................................

8

5.10

HYDRAULIC

CIRCUIT

...............................................................................................................................................................

8

5.11

FAN

SPEED

CONTROL

.............................................................................................................................................................

8

5.12

ENHANCED

VAPOUR

INJECTION

(EVI)

TECNOLOGY

...............................................................................................................

8

6

AVAILABLE

VERSIONS,

SIZES

AND

ACCESSORIES

..................................................................................................................

9

6.1

OPTIONAL

ACCESSORIES

......................................................................................................................................................

10

7

INSTALLATION

..................................................................................................................................................................

11

7.1

GENERALITY

.........................................................................................................................................................................

11

7.2

LIFTING

AND

HANDLING

......................................................................................................................................................

11

7.3

LOCATION

AND

MINIMUM

TECHNICAL

CLEARANCES

..........................................................................................................

11

7.4

HYDRAULIC

CONNECTIONS

..................................................................................................................................................

12

7.4.1

Drainage

connection

....................................................................................................................................................

12

7.4.2

Service

valve

.................................................................................................................................................................

12

7.4.3

Plant

drainage

system

..................................................................................................................................................

12

7.4.4

Hydraulic

circuit

...........................................................................................................................................................

13

7.5

REFRIGERANT

DIAGRAMS

....................................................................................................................................................

13

7.5.1

Refrigerant

diagram

of

the

model

N

‐

i

‐

HP

0125

...........................................................................................................

13

7.5.2

Refrigerant

diagram

of

the

model

N

‐

i

‐

HP

0235

‐

0250

..................................................................................................

14

7.5.3

Refrigerant

diagram

of

the

model

N

‐

i

‐

HP

‐

LT

0125

......................................................................................................

14

7.5.4

Refrigerant

diagram

of

the

model

N

‐

i

‐

HP

‐

LT

0235

‐

0250

.............................................................................................

15

7.6

ELECTRICAL

CONNECTIONS

..................................................................................................................................................

15

7.6.1

Wiring

terminal

block

...................................................................................................................................................

16

8

START

UP

..........................................................................................................................................................................

18

9

POWER

‐

ON

OF

THE

UNIT

..................................................................................................................................................

19

10

SHUTDOWNS

FOR

LONG

PERIODS

.................................................................................................................................

19

11

MAINTENANCE

AND

PERIODICAL

CONTROLS

.................................................................................................................

19

11.1

ENVIRONMENTAL

PROTECTION

...........................................................................................................................................

19

12

WHEN

THE

UNIT

GOES

OUT

OF

SERVICE

........................................................................................................................

20

13

TECHNICAL

DATA

(PRELIMINARIES)

...............................................................................................................................

20

13.1

STANDARD

VERSION

............................................................................................................................................................

20