18
Primary circuit: Brine/water, heat pump cascade (type BW 302.D090 to BW 302.D230)
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. 12
Equipment required
Pos.
Description
1
Lead heat pump
2
Heat pump control unit with LON communication module (accessories)
9
Lag heat pump
qT
Primary pump, lead heat pump (fail-safe)
Note
For 2-stage Vitocal 300-G Pro, a primary pump can be used for stages 1 and 2 respectively. Ob-
serve minimum flow rate.
wP
Brine safety assembly
wQ
Pressure switch, primary circuit
wW
Brine manifold, geothermal probes/collectors
wT
Primary pump, lag heat pump (fail-safe)
Note
For 2-stage Vitocal 300-G Pro, a primary pump can be used for stages 1 and 2 respectively.
wU
Geothermal probes
Electrical installation scheme
For a summary of electrical connections, see from
page 31 and separate "Connection and wiring dia-
gram".
Preparing for installation
Hydraulic connection requirements
(cont.)
5838144
Installation
Summary of Contents for Vitocal 300-G Pro BW 302.D090
Page 90: ...90 5838144...
Page 91: ...91 5838144...
