Hydraulic System - Palazzetti Termopalex HWT Serie Notice D'utilisation

5.9 Hydraulic system

The hydraulic system and the appliance itself must be connected by qualified personnel, in compli-
ance with laws and regulations in force in the country (in Italy ref. D.M. 1/12/1975 and UNI 10412-2). The
hydraulic connection to the appliance must be completed before the upper part of the casing and
the outer hood are installed.
1. Before installing the casing, perform the hydraulic seal test on the pipes connected to the
appliance.
2. Make sure that all control and safety devices, including those supplied as standard, have been
installed correctly.
MAIN CIRCUIT: OPEN CHAMBER
MAXIMUM PRESSURE SECONDARY CIRCUIT: 2.5 bar
DO NOT INCLUDE any room thermostats that stop or start the circulation pump in order
to regulate the temperature in rooms. For safety reasons, the pump must ALWAYS operate
for as long as the stove is burning fuel, to dispose of the heat generated in the Termopalex.
If the rooms are too hot, reduce the size of the fire, even letting it go out if necessary.
Never exceed the maximum recommended load of wood fuel indicated in the product booklet.
Description of the hydraulic connections (Fig.
5.9a)
The hydraulic unit comprises the following parts:
A) Circulator (main circuit)
B) Circulator (secondary circuit)
C) Plate-type heat exchanger
D) Digital thermo-regulator
E) Main circuit delivery with cut-off valve
F) Manual secondary circuit vent
G) Expansion chamber open
H) Main circuit drain tap
I) Secondary circuit delivery with cut-off valve
J) Main circuit return cut-off valve
K) Secondary circuit safety valve (2.5 bar)
L) Secondary circuit filling/emptying
M) Probe well
N) Mains water inlet
O) Expansion chamber discharge
P) ACS mixing/delivery valve
Q) Top-up pipe connection
R) Main circuit top-up pipe
S) Secondary circuit return cut-off valve
36
HWT FAST ACS version
Connection to the water circuit
The stove is connected to the water circuit at the
following points:
• Hot water delivery to secondary circuit (I)
• Return from secondary circuit (J)
• Mains water inlet (N)
• ACS mixing/delivery valve (P)
• Expansion chamber discharge (O)
• Secondary circuit filling/emptying (L)
• Secondary circuit safety valve discharge (K)
• Appliance boiler discharge (H)
Probe connection
Connect the two probes of the temperature
controller (S1 and S2). Insert S1 in the housing
(M) on the fireplace. Place S2 on the secondary
return pipe, near the shut-off valve (S).
Digital temperature controller (ACS)
configuration
Set the digital temperature controller according
to "system diagram n°17".
Set parameter A25 of the GLH 110 to 48°.
Follow the instructions in the temperature
controller manual.
004778240 - 15/04/2020