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Figure 1: Water connections without hydraulic
module
Figure 2: Hydraulic connections with
hydraulic module
Example: Single-pump
Coupling for expansion
vessel (option 293)
Presence of a
stainless steel filter
Example: Dual-pump
Coupling for expansion
vessel (option 293)
Presence of a
stainless steel filter
Figure 3: Hydraulic connections with hydraulic
module and with buffer tank module option
A
15
5
23
6
Key
Components of the hydraulic module and the unit
1 Screen filter (particle size of 1.2 mm)
2 Expansion tank (option)
3 Relief valve
4 Circulating pump (single or dual)
5 Air vent
6 Water drain tap
7 Pressure sensor
Note: Provides pressure information for the pump inlet (see Control manual)
8 Temperature sensor
Note: Provides temperature information for the water exchanger outlet
(see Control manual)
9 Temperature sensor
Note: Provides temperature information for the water type heat exchanger inlet
(see Control manual)
10 Pressure sensor
Note: Provides pressure information for the water exchanger outlet (see Control
manual)
11 Check valve (If dual-pump)
12 Plate heat exchanger
13 Heater or heat trace cable for frost protection (Option)
14 Water type heat exchanger flow rate sensor
15 Water buffer tank module (Option)
Installation components
16 Pocket
17 Air vent
18 Flexible connection
19 Shut-off valve
20 800 µm screen filter (mandatory for a unit without a hydraulic module)
21 Pressure gauge
22 Water flow control valve
Note: not required if hydraulic module with variable-speed pump
23 Charging valve
24 Bypass valve for frost protection (if shut-off valves are closed (item 19) during
winter)
25 Buffer tank (if required)
---- Hydraulic module (unit with hydraulic module option)
Notes:
-
The installation must be protected against freezing.
-
The unit's hydraulic module and the water type heat exchanger may be protected
(factory-fitted option) against freezing using electric heaters and heat trace
cables (13)
- The pressure sensors are assembled on connections without Schrader.
Depressurise and drain the system before any work.
8 - WATER CONNECTIONS
36
Summary of Contents for 30RB-170R
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