WATER-COOLED/CONDENSERLESS
LIQUID CHILLERS 30WG/30WGA 020-090
Hydronic module (options 116T, 270T)
Typical water piping diagram
2
PT
Unit water inlet
3
6
4
5
TT
7
15
Components of unit and hydronic module
9
1
Victaulic screen filter (option 293 or 293A only)
2
Expansion tank (option 293 or 293A only)
3
Safety valve (option 293 or 293A only)
4
Water pump
5
Air vent
6
Water drain valve
7/8 Entering/leaving pressure sensor
9/10 Entering/leaving temperature probe
12 Flow switch 61WG option 272 (sizes 020-045 only)
13 Compressor
14 Evaporator
15 Condenser
16 Expansion device
Condenser water loop (30WG)
TT
PT
10
8
Unit water outlet
2
1
PT
Unit water inlet
6
3
4
6
5
13
TT
16
14
9
7
COOLING
1
NOTE: Units without hydronic module include a flow switch.
Evaporator water loop (30WG/30WGA)
Unit water outlet
12
TT
PT
10
8
6
020 025 030 035 040 045 050 060 070 080 090
Operating weight, 30WG/61WG (options 116V and 270V)*
Operating weight, 30WGA (option 116V)*
Height**
Hydronic module
Maximum operating pressure
Water filter (max. removed particle diameter)
Expansion tank capacity***
Water connections
*
**
***
kg
kg
mm
305
250
1463
313
258
1463
313
258
1463
321
263
1463
327
266
1463
334
271
1463
513
431
1463
521
435
1463
533
442
1463
544
449
1463
574
465
1463
kPa
mm
l
in
300
1.2
8
1.5
300
1.2
8
1.5
300
1.2
8
1.5
300
1.2
8
1.5
300
1.2
8
1.5
300
1.2
8
1.5
300
1.2
12
2
300
1.2
12
2
300
1.2
12
2
300
1.2
12
2
300
1.2
12
2
Weight shown is a guideline only.
The length and width dimensions are the same as for the standard unit.
When delivered, the standard pre-inflation of the tanks is not necessary the optimal value for the system. To permit changing the water volume, change the inflation pressure to a
pressure that is close to the static head of the system. Fill the system with water (purging the air) to a pressure value that is 10 to 20 kPa higher than the pressure in the tank.
Electrical data, options 116T, 270T
The original pumps that are factory-installed in these units
have motors with efficiency class IE2. The additional electrical
data required by regulation 640/2009 are given in the
installation, operation and maintenance instructions.
This regulation regards the application of directive 2005/32/
CE on the eco-design requirements for electric motors.
Pump curve, 30WG/30WGA (options 116, 270)
Data applicable for:
-- Fresh water 20 °C
-- In case of use of the glycol, the maximum water flow
is reduced
-- T
he curves represented below are in normal
conditions: leaving water on the back side of the unit
(without option 274).
Variable-speed high-pressure pumps
(options 116V - 270V)
Fixed-speed low-pressure pumps
(options 116T - 270T)
220
30WG-30WGA 020-080
30WG-30WGA 090
200
Pressure head, kPa
Pressure head, kPa
2
1
3
4
4
180
30WG-30WGA 020-045
30WG-30WGA 050-090
160
3
140
CONTROLS
1
2
120
100
80
60
40
20
0
0
C
A
R
R
I
E
Water flow rate, l/s
R
2 0 1 6
/
1
2
3
4
5
6
7
8
Water flow rate, l/s
2
0
1
7
AIR TREATMENT
30WG/30WGA
HEATING HEATING
Physical data, units with hydronic module
9
10
11
12
221