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Technical specifications
Materials
Shut-off valves
Body:
Check valve:
Temperature gauge:
Air separator device
Body:
Instrument holder
Body:
Seals:
O-Rings:
Insulation
Material:
Average thickness:
Density:
Working temperature range:
Thermal conductivity:
Reaction to fire (UL 94):
Performance
Medium:
Max. percentage of glycol:
Max. working temperature:
Max. working pressure:
Safety relief valve working temperature range:
Safety relief valve setting:
Characteristic components
1) Grundfos Solar 15-80 circulation pump
2) Safety valve with adjustable outlet type 253 series
3) Fill/drain cock with control key
4) Instrument holder fitting with pressure gauge
5) Balancing valve with built-in flow meter and indicator with
magnetic movement
6) Deaerator with air vent
7) Flow temperature gauge
8) Return temperature gauge
9) Pre-formed shell insulation
10) Shut-off valve with built-in check valve
11) Connection kit for expansion vessel (optional)
12) Display with synoptic diagram and temperature indication*
13) Regulating keys*
14) Temperature probe*
15) Stainless steel probe pocket code 257004 (optional)
16) Hose connection
* only for versions with regulator DeltaSol
10
80
60
100
8
40
120
20
140
0
160
9
3
7
16
6
5
4
3
2
5
brass EN 12165 CW617N
brass EN 12164 CW614N
steel / aluminium
brass EN 12165 CW617N
brass EN 12165 CW617N
45 kg/m
-5–120°C
0,037 W/(m·K) at 10°C
class HBF
water, glycol solutions
- deaerator side flow:
- pump side return:
-30–160°C
6 bar (for other sets, see 253 series)
®
C+
2
3
6
4
bar
16
8
2
0
10
4
1
11
Check valve min. opening pressure (Δp): 2 kPa (200 mm w.g.)
Working temperature range of
shut-off and check valve:
Working temperature range of
balancing valve with flow meter:
Flow rate adjustment range:
Flow rate indicator accuracy:
Pressure gauge scale:
Temperature gauge scale:
Connections:
Hose connection:
Fill/drain connections:
EPDM
EPDM
Grundfos Solar 15-80 pump
Body:
Electric supply:
EPP
Max. pressure:
30 mm
Max. temperature:
3
Protection class:
Digital regulator
Electric supply:
Nominal power consumption:
4 Pt1000 probe inputs
2 relay outputs with semiconductor with contact rating:
2 temperature probes with working range:
50%
Probe cable working temperature range:
160°C
2 temperature probes with working range:
110°C
Probe cable working temperature range:
10 bar
Ambient temperature range:
Protection class:
Dimensions:
12
13
10
7
40
20
8
6
9
16
5
3
2–7 l/min; 3–10 l/min; 7–25 l/min
with Ø 15 mm hose connection
75°
65°
12°
80
80
60
100
60
100
4
6
bar
40
120
120
8
2
140
20
140
10
0
0
160
0
160
3
7
6
5
4
3
2
-30–160°C
-30–130°C
± 10%
0–10 bar
0–160°C
3/4" F
3/4"M
cast iron GG 15/20
230 V - 50 Hz
10 bar
110°C
IP 42
230 V - 50 Hz
4 (2) A at 240 V
1 A
-50–200°C
-50–70°C
-50–200°C
-50–180°C
0–40°C
IP 20
172 x 111 x 49 mm
14
15
2
3
16
4
1
11
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