Installation manual
2
EWLP012~065KBW1N
Condenserless water-cooled water chillers
4PW61665-1 – 07.2010
Features
■
Voltage free contacts
-
general operation
-
alarm
-
operation compressor 1
-
operation compressor 2
■
Changeable remote inputs
Following functions can be assigned to a total of 2 digital inputs.
-
remote start/stop
-
remote cooling/heating
-
dual setpoint
O
PERATION
RANGE
M
AIN
COMPONENTS
(refer to the outlook diagram supplied
with the unit)
1
Compressor
2
Evaporator
3
Accumulator
4
Switchbox
5
Chilled water in
6
Chilled water out
7
Discharge stop valve
8
Liquid stop valve
9
Evaporator entering water temperature sensor
10
Freeze-up sensor
11
Digital display controller
12
Power supply intake
13
Ball valve (field installed)
14
Water filter (field installed)
15
Air purge valve (field installed)
16
T-joint for air purge (field installed)
17
Flowswitch (with T-joint) (field installed)
18
Main switch
S
ELECTION
OF
LOCATION
The units are designed for indoor installation and should be installed
in a location that meets the following requirements:
1
The foundation is strong enough to support the weight of the unit
and the floor is flat to prevent vibration and noise generation.
2
The space around the unit is adequate for servicing.
3
There is no danger of fire due to leakage of inflammable gas.
4
Select the location of the unit in such a way that the sound
generated by the unit does not disturb anyone.
5
Ensure that water cannot cause any damage to the location in
case it drips out of the unit.
The equipment is not intended for use in a potentially explosive
atmosphere.
I
NSPECTING
AND
HANDLING
THE
UNIT
At delivery, the unit should be checked and any damage should be
reported immediately to the carrier claims agent.
U
NPACKING
AND
PLACING
THE
UNIT
1
Cut the straps and remove the cardboard box from the unit.
2
Cut the straps and remove the cardboard boxes with waterpiping
from the pallet.
3
Remove the four screws fixing the unit to the pallet.
4
Level the unit in both directions.
5
Use four anchor bolts with M8 thread to fix the unit in concrete.
6
Remove the service front plate.
I
MPORTANT
INFORMATION
REGARDING
THE
REFRIGERANT
USED
This product is factory charged with N2.
The refrigerant system will be charged with fluorinated greenhouse
gases covered by the Kyoto Protocol. Do not vent gases into the
atmosphere.
Refrigerant type:
R407C
GWP
(1)
value:
1652.5
(1)
GWP = global warming potential
Please fill in with indelible ink,
■
the total refrigerant charge
on the fluorinated greenhouse gases label supplied with the product.
The filled out label must be adhered on the inside of the product and
in the proximity of the product charging port (e.g. on the inside of the
service cover).
CT
Condensing temperature (bubble)
LWE
Leaving water temperature evaporator
a
Glycol
b
Water
Standard operation range
0
10
20
–10
–5
5
32
25
0
10
20
50
60
CT
ZL
ZL
ZH
ZH
ZL
ZH
1.5
1.5
1.5
25
a b
a b
a b
0
10
20
–10
–5
5
32
25
0
10
20
25
50
60
CT
ZL
ZL
ZH
ZH
ZL
ZH
-2
-2
–2
65
65
a b
a b
a b
EWLP012~030
EWLP040~065
2
1
1
total refrigerant charge
2
Contains fluorinated
greenhouse gases
covered by the Kyoto
Protocol
4PW61665-1_digital_EN.book Page 2 Friday, August 27, 2010 2:13 PM
