44
EN/06.2016/i09 © STULZ S.p.A. – all rights reserved
WSA ExplOrEr OriginAl inStructiOnS
Standar
d data sheet.
C
heck
MA
nu
Al
p
Art
ii
a
for any c
hange
s.
Evaporator water (in/out) 12/7 °C; condenser air (in) 35 °C;
Average sound pressure level at 10 m distance; unit in a free field on a reflective surface.
According to ISO 3744. Unit at full capacity. Pump contribution is not considered.
*In case of applications with an output fluid temperature below +5 °C, please contact the manufacturer.
30% Glycol-Water solution. Evaporator solution IN/OUT= 15/10 °C; Condenser air 30 °C
Average sound pressure level, at 10m distance, unit in a free field on a reflective surface.
Unit at full capacity. According to ISO 3744. Pumps contribution is not considered.
* In case of applications with output fluid temperature below 0°C, please contact the manufacturer
Fc
WSA-280
WSA-280-Sl
WSA-280-Fc
g
En
Er
Al
Cooling Capacity
kW
631
589
594
Power Consumption W7L35
kW
203
212
212
Free Cooling capacity W10L (see below)
kW
--
--
611
Pressure Sound level @10m
dB(A)
69,6
69,6
69,6
Power Sound level
dB(A)
97,7
89,8
97,7
H
YD
rA
ulic
Water flow
m³/h
108
101
108,2
Pressure drops
kPa
38
37
38,25
Water circuit content, unit side
t.b.d.
t.b.d.
t.b.d.
Coolant Liquid
Type
Water - max 40% glycol
Inlet Temperature
°C
12
12
12
Outlet Temperature
°C
7
7
7
r
EF
rig
Er
Ant
Refrigerant gas
Type
R134a
Refrigerant charge
kg
112 + 112
Refrigerant Circuit
n°
2
Oil charge
19 + 19
c
OM
pr
ESSO
r
S
Compressors
n°
2 x Semi-Hermetic Double Screw
Partialization
%
12,5 ... 100
12,5…100
12,5…100
Power consumption W7L35
kW
179
179
187
Absorbed current W7L35
A
51,6
30
51,6
Max power consumption
kW
262
262
262
Max absorbed current
A
428
428
428
FA
n
S
Axial Fans
n°
12
12
12
Fan flow
m³/h
215045
147655
177851
Power Consumption W7L35
kW
24
15
24
Absorbed current W7L35
A
51,6
30
51,6
Power consumption
kW
26,4
26,4
26,4
Max absorbed current
A
56,8
56,8
56,8
F.
c
.
Temperature of total FC
°C
-0,7
Flow of fluid to be cooled
m³/h
105
Pressure drop
kPa
27
unit
D
At
A
Power supply
V/ph/Hz
400 / 3 / 50
Operating current
t.b.d.
t.b.d.
t.b.d.
Max absorbed current
A
495
495
495
Starting current
A
946
946
946
Height x Width x Depth
mm
2473 x 2278 x 6960
EER
3,11
2,77
2,81
ESEER (ISO14511)
4,58
4,66
4,39
IPLV
4,58
4,71
4,3