38
004778240 - 15/04/2020
HWT FAST version
Description of the hydraulic connections
(Fig. 5.9b)
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
S) Secondary circuit return cut-off valve
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)
• 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.
