Trane CGAH 115, CGAH 230, CGAH 235, CGAH 125, CGAH 120 Installation Operation & Maintenance

ïi

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CGAH

AÍr

cooled

liquid

chilfers

j

Instaf

lation

Operation

Maintenance

To

be

used

with

manual

for

module

SMM

reference

L80 lM 019 E

Sizes

ilS

-

lZO

-

tiS

-

ZZS

-

230

-

235

_

240

-250

j

Gro lM

ooz E

The

aim

of

this

document

for

users

is

to

set

out

the

rules

for

the installation,

set-up,

operation

and

maintenance

of

this

type

of Trane

liquid

chilter.

The maíntenance

operations

required

to insure

that

this

machine

operates

reliably

throughout

its

full

service

life

are not

exhaustively

described.

only

the

services

of

a

qualífied

technician

employed

by

a reputabte

service

company

can insure

that

the

machine

operates

durably

and reliably.

warranty

is

based

on

the

general

terms

and

conditíons

of

société

Trane.

The

warranty

is

void

if

the

equipment

is

repaired

or modified

without

the

written

approval

of Trane,

if

the operating

limits

are

exceeded

or

if

the

controlsystem

of

the

electrical

wiring

is

modified.

Damage

due

to misuse,

lack

of

maintenance

or failure

to

comply with

the

manufacturer,s

instructions

or

recommendations

is

not

covered

by

the

warranty

obligation.

,-.1

All air-conditioning

units

are

shipped

to

their installation

site

on

a wooden

skid.

All machines

reach

final

destination

completely

connected

and assembled

ready

for immediate

start-up.

Please

check

that the

unit has

not

in

any

way

been

damaged

during

the

transport,

as soon

as it

arrives

on

site. lf

damage

is observed,

or even

on suspicion

of damage.

ó

Carry

out

instructions

for

notification

of

damage

in

transport,

and

warn

your

Trane

Agency.

About

this

manualz

"Caution'

and

'Warnings"

messages

appear

at the

appropriate

place

throughout

the

manual.

Your

personal

safety

and

the

proper

operation

of

this

machine

require

that

you

follow

them

carefully.

Trane

Europe

assumes

no

liability

for instalrations

or

servicing

performed

by

unqualified

personnel.

n1

Acceptance

on

delivery....,.

.......................:.

...............2

Unit nameplafe

r

"

...'........4

lnstallation

instructions....

................4

Water connection

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

..........,5

Wiring

diagram

-

Customer

electric

power

supp1y..............

.......,.....,7

Unit

nameplate

The unit nameplate

gives

the complete

model reference

numbers.

The unit

power

rating

is

shown,

and

power

supplies

should not

deviate

by

more than

5% from

the rated

power.
Compressor motor

amperage is

shown in

box

g.

The

current intensity

(shown

in

amps) is the maximum

for

the

rated

operating voltage.

The

customer's

electrical

installation

must be

able to

withstand

this current.

lnstallation

ihstructions

Foundations
No

special foundations

are

required,

provided

the

supporting

surface

ís flat

and

level,

and

can

withstand

the

weight

of

the unit.

Water

drain

hole

Insure

there is

a drain hole

wide

enough

to drain

away

water from

the

unit in

the event

of

shut-down

or

repair.

Clearance
tnsure

there is

sufficient

clearance

around

the

unit to

allow maintenance

operations

to take

place

without

obstruction.
For minimum

clearance

consult

the certified

submittals,

which are available

on request

from

your

Trane

agency.

Handling

A

(mm)

B

(mm)

Maximum

weight

(kg)

1500
1800

725

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LOW.

NTEDER

SOCIETE

TRANE

88190

GOLBEY.

FRANCE

e

rnArr

Water

to evaporator

connection

lnstall

water circulation pump

upstream of

the

evaporator,

insuring

that the

evaporator

is

under

positive

pressure.

Tables

for

power

supply

connections

and water return

are

shown on the

certified submittals.

These drawings

are available

on request from

your

Trane
agency.
The

114 coupling

located

on the outlet connections

may

be

used as the draining

outlet

from

the

plate

heat

exchanger.

The

following recommendations

refer

to

Figure

2.

1. Pressure

gauges:

shows entering and leaving water

pressure.

Stop valves

should

be

provided

on water

inlets

and

outlets.

2. Vibration dampers:

these are

supplied as standard

with

the

machine,

and should

be

placed

between

the

suppofting floor

and

the unit to

prevent

vibrations

being transmitted

to the chilled water

circuits.

3.

Thermometers: indicate

chilled water entering

and

leaving temperatures.

4. Balancing

valve:

controls water flow

5. Stop valves: isolate

chillers

and water circulating

pump

during maintenance

operations.

lnsure

that

all

chilled

water.

pipes

are fully insulated,

in

order

to

prevent

frost

damage. lnsulate

heating

resistors

on all water

pipes

exposed to negative

temperatures.

Minimum

water

capacity

Minimum volume

of water

in

the

chilled water

circuit

must

be

no less

than 10%

of

the

volume

of

water

circulating

per

hour

in the

unit.

lf necessoN,

a buffer tank should

be

fitted.

Safety

and

regulation

devices

will

only operate

correctly if

there is

sufficient

water

in

the system.

Figure 2 - Water-to-evaporator

connection

Pressure

gauge

Balancing

valve

Water treatment
Untreated or insufficiently

treated water,

if

used in this

unit, may cause scale,

slinre or

algae

to

accumulate

or

cause erosion and corrosion.

The

services

of a

qualified

water

treatment specialist

are recommended

to

determine

what

treatment, if

any, is

advisable.

Trane

disclaims

any

liability

with

regard

to

damage arising

from

the

use

of untreated or improperly

treated water,

or from

the use of saline or brackish

water.

Stop valves

Expansion

compensators

Stop valves

Evaporator

ff."

General unit

characteristics

(11

Maximum load

amps

to be used

for

sizing oí

cables,

fuses

and

disconnect

switch

(21

Starting

amps

with

one

coÍnpressor

starting

,the

remaining

compressor(s)

running

at

full load

Fuses

107

2sA

157

404

Each compressor

is supplied

with

its

own

fuses.

{,

Size

115

120 125

zz5

230

235

240

250

Compressors

'l0T+107

10T+157

15T+157

(10T+10T)+157

(10T+15T1+157

(1!iT+l5T)+157

2X(10T+15T)

2X(15T+15T)

Circuit

1

t 1

2

2

2

2

2

Capacity

control

ïo

50

58 ou

42

50 7sl30

70F'4

66t33

80t50/20

75FAn5

Max load

amps

(1)

28 bar

disch. 5 bar

suct.

380V A 42

53 64

74

85

96

106

128

4't5V

A

39 49

59

69 79

89

97

118

Nomínal load

amps

25bar disch. 5 bar

suct.

380V A

38 48

58

67

77

87

96

116

415V

A

35 14

54 62

71

81

88

107

Starting

amps

(2)

380V A

107

143

154

163

173

183

196

218

415V A

1lil 158

168

176

185

195

207

227

Control

cir.

amos 230V A

1.8

1.8 1.8

2.8

2.8

2.8

2.8

?.8

Evaporator water

volume

Litres

3.76 1.7

5.66

7.52

8./to

9.12

9.42

11.32

Number

of

fan(s)

1

2

2

2

2ou3

2ou3

2ou3

2ou3

Condenser air flow

m3/s

4.25

4.96

6.61 1.46

8.4

9.5

11.8

11.8

Nominal fan

sDeed

revlmn

5.5

r0.9

10.9

10.9

16.3

16.3

21.9

21.7

Fan

motor

kW each

kw

1.2

1.2

1.2 1.2

1.2

1.2

1.2

1.?

Fan motor

staning amps

(3)

380V

A 14.1

14.1

I4.1

14.1

14.1

14.1

1

tl.1

14.'l

415V

A 15.4

15.4

15.4

15.4

15.4

15.4

15.4

15.4

Fan

motor

full

load

amps

(3)

380V

A

3.9

3.9

3.9 3.9

3.9

3.9

3.9

3.9

415V

A

3.6

3.6 3.6

3.6

3.6

3.6

3.6

3.6

Unit oil charge

See submittal

Weiqht

725

850

975

1250

1375

1 425

15s0

1750

Coolins fluid

charqe

See submittal
See

submittal
See submittal
See submittal

Lenght

width

Heiqht

NOTES: