19
Required equipment
Pos.
Designation
1
Heat pump
2
Heat pump control unit
qT
Primary pump 1 (fail-safe)
wP
Brine safety assembly
wQ
Pressure switch, primary circuit
wW
Brine distributor for geothermal probes/collectors
wT
Optional: Primary pump 2 (fail-safe) for stage 2
Note
■
Contactor relay required.
■
Size primary pump 1
qT
for partial load.
wU
Geothermal probes
Electrical installation scheme
For a summary of electrical connections, see from
page 37 and separate "Connection and wiring dia-
gram".
Primary circuit: brine/water, cascade
Type BW 301.B090 to BW 302.B250
Hydraulic installation scheme
22
27
20
21
9
P1
25
P1
P1
15
2
--KM BUS--
--230 V
--
--F2--
--21
1.1--
--F3--
--2/211.1--
--2/211.1--
P1
1
2
--KM BUS--
--230 V
--
--F2--
--21
1.1--
--F3--
--LP1 X3.8;3.9--
--LP1 X3.8;3.9--
--2/LP1 X3.8;3.9--
P
Fig.15
Preparing for installation
Primary circuit: brine/water, 2-stage
(cont.)
5549 984 GB
Installation
Summary of Contents for KWT BW 301.B090
Page 99: ...99 5549 984 GB...
