201703
11
P
art 2 - Component La
y
o
ut and R
e
frig
e
ran
t Cir
cuits
2.2 Hydronic box Piping
Figure 2-2.1: piping diagram
Legend
1
Air purge valve
11 Water
outlet
2
Backup electric heater
12 Water
inlet
3
Expansion vessel 13.1
Water side heat exchanger refrigerant outlet (gas pipe) temperature
sensor
4
Refrigerant liquid side
13.2
Water side heat exchanger refrigerant inlet (liquid pipe) temperature
sensor
5
Refrigerant gas side
13.3
Water side heat exchanger water outlet temperature sensor
6
Water side heat exchanger
13.4
Water side heat exchanger water inlet temperature sensor
7
Water flow switch
13.5
Backup electric heater water outlet temperature sensor
8
Water pump
14.1
Anti-frozen electric heater for water side heat exchanger
9
Manometer
14.2
Anti-frozen electric heater for water inlet pipe
10
Safety valve
Key components:
1.
Air purge valve:
Automatically removes air from the water circuit.
2.
Safety valve:
Prevents excessive water pressure by opening at 43.5 psi (3 bar) and discharging water from the water circuit.
3.
Expansion vessel:
Balances water system pressure. (Expansion vessel volume: 3L.)
4.
Water flow switch:
Detects water flow rate to protect compressor and water pump in the event of insufficient water flow.
5.
Backup electric heater:
Provides additional heating capacity when the heating capacity of the heat pump is insufficient due to very low
outdoor temperature. Also protects the external water piping from freezing.
6.
Manometer:
Provides water circuit pressure readout.
7.
Water pump:
Circulates water in the water circuit.
MUNDOCLIMA AEROTHERM V17 - BIBLOC
