Installation manual

132
4.6.2
4.6.2 Low-temperature heat pumps with 2 compressors WI 40CG to WI 90CG
Device information for water-to-water heat pumps (heating only)
1 Type and order code
WI 40CG WI 90CG
2Design
2.1 Degree of protection according to EN 60 529 IP24 IP24
2.2 Installation Location Indoors Indoors
3 Performance data
3.1 Operating temperature limits:
Heating water flow °C Up to 55 Up to 55
Cold water (heat source) ° C +7 to +25 +7 to +25
3.2 Temperature spread of heating water (flow/return flow) at W10 / W35K 10.8 9.9
3.3 Heat output / COP at W7 / W55
1
kW / ---
2
1. This data indicates the size and capacity of the system according to EN 255 or EN 14511. For an analysis of the economic and energy efficiency of the system, bivalence point
and regulation should also be taken into consideration. The specified values, e.g. W10 / W55, have the following meaning: Heat source temperature 10 °C and heating water flow
temperature 55 °C.
2. Operation with 1 compressors
18.1 / 3.0 40.3 / 3.2
kW / ---
3
3. Operation with 2 compressors
38.6 / 3.2 80.1 / 3.2
at W10 / W50
1
kW / ---
2
20.6 / 3.8 45.8 / 4.0
kW / ---
3
43.0 / 4.0 88.1 / 3.8
at W10 / W35
1
kW / ---
2
23.4 / 5.9 49.8 / 5.9
kW / ---
3
44.4 / 5.7 91.2 / 5.4
3.4 Sound power level dB(A) 59 70
3.5 Heating water flow with an internal pressure differential of m³/h / Pa 3.5 / 14000 8.0 / 13000
3.6 Cold water flow with an internal pressure differential of m³/h / Pa
(heat source)
9.5 / 17500 20.0 / 19000
3.7 Refrigerant; total filling weight type / kg R407C / 6.7 R407C / 15.0
4 Dimensions, connections and weight
4.1 Device dimensions without connections
4
H x W x L mm
4. Note that additional space is required for pipe connections, operation and maintenance.
830 x 1480 x 890 830 x 1480 x 890
4.2 Device connections to heating system Inch Thread 1 1/4'' external Thread 2'' external
4.3 Device connections to heat source Inch Thread 1 1/2'' external Thread 2'' external
4.4 Weight of the transportable unit(s) incl. packing kg 309 460
5 Electrical Connection
5.1 Nominal voltage; fuse protection V / A 400 / 35 400 / 63
5.2 Nominal power consumption
1
W10 W35 kW
7.81 16.97
5.3 Starting current with soft starter A 26 60
5.4 Nominal current W10 W35 / cos ϕ 5) A / --- 14.1 / 0.8 30.7 / 0.8
6 Complies with the European safety regulations
5
5. See CE declaration of conformity
5
7 Additional model features
7.1 Water in device protected against freezing
6
6. Not required when installed in rooms protected from frost.
No No
7.2 Performance levels 2 2
7.3 Controller internal/external External External