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ACV Watermaster Manual

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WaterMaster 25 - 35 - 45 - 70 - 85 - 120 : A1006482 - 664Y7300 • D
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TECHNICAL CHARACTERISTICS
CHIMNEY CONNECTION CHARACTERISTICS FLUE PIPE CONNECTION TYPES
It is mandatory to use ACV flue systems to connect the appliance.
B23P: : Connection to a combustion product exhaust system designed to operate with positive pressure.
B23 : Connection to an exhaust duct that discharges the combustion products outside the room
where it is installed, with the combustion air being drawn directly from the boiler room.
C13(x) : Connection using pipes tted with a horizontal terminal that simultaneously takes in combustion air
for the burner and discharges combustion products outside through openings that are either concen-
tric or close enough together to be subjected to similar wind conditions, i.e. openings shall t inside a
square of 50 cm for appliances up to 70 kW and inside a square of 100 cm for appliances above 70 kW.
C33(x) : Connection using pipes tted with a vertical terminal that simultaneously takes in fresh air for the
burner and discharges combustion products outside through openings that are either concentric
or close enough together to be subjected to similar wind conditions , i.e. openings shall t inside a
square of 50 cm for appliances up to 70 kW and inside a square of 100 cm for appliances above 70 kW.
C43(x) : Connection using two pipes to a collective duct system serving more than one appliance; this
system of collective ducts features two pipes connected to a terminal unit that simultaneous-
ly takes in fresh air for the burner and discharges the combustion products outside through
openings that are either concentric or close enough together to be subjected to similar wind
conditions. C43(x) appliances are suitable for a connection to a natural draught chimney only.
C53(x) : Connection to separate ducts for supplying combustion air and discharging combustion prod-
ucts; these ducts may end in zones with dierent pressure levels, but are not allowed to be
installed on opposite walls of the building.
C63(x) : Type C appliance meant to be connected to a system for supplying combustion air and discharg-
ing combustion products, that is approved and sold separately (Prohibited in some countries
(e.g. Belgium) - refer to local regulations and standards in force). Terminals for the supply of
combustion air and for the evacuation of combustion products are not allowed to be installed on
opposite walls of the building. See also the following additional specications:
• Maximum allowable draught is 200 Pa.
• Maximum allowable pressure dierence between combustion air inlet and ue gas outlet
(including wind pressures) as follows: 95 Pa (WM 25), 130 Pa (WM 35-45), 110 Pa (WM 70),
160 Pa (WM 85) and 170 Pa (WM 120).
• Condensate ow is allowed into the appliance.
• Maximum allowable recirculation rate of 10% under wind conditions.
C83(x) : Connection using a single or double duct system. The system is made of a normal exhaust
ue duct that discharges the combustion products. The appliance is also connected through
a second duct tted with a terminal, that supplies the burner with fresh outdoor air. Please
contact your ACV representative for the meters of ue pipes that can be used to connect the
appliance(s).
C93(x) : Connection using an individual system whose combustion product exhaust duct is installed in
an exhaust duct that is integral with the building. The appliance, the exhaust duct and the ter-
minal units are certied as an inseparable assembly. Minimum usable diameter for the vertical
duct supplying the combustion air is 100 mm.
The C93 configuration enables airtight operation in a pre-existing chimney. The combustion
air crosses the space between the tubing and the pre-existing chimney. Make sure to clean
the pre-existing chimney thoroughly prior to installation, especially if there is soot or tar
residue. Make sure that there is a clearance area for the combustion air at least equivalent
to the area that would have been provided by separate concentric ducts or air intake ducts.
C13
C33
C53
C43
C43
C43
C33 B23P
C43
C43
C43
C93
B23
Main Characteristics WM 25 WM 35 WM 45 WM 70 WM 85 WM 120
Air/flue pipe Ø concentric mm 80/125 80/125 80/125 100/150 100/150 100/150
parallel mm 80/80 80/80 80/80 100/100 100/100 100/100
Max. allowed ue pipe
pressure drop Pa 95 130 130 110 160 170
Max recommended length of
concentric ue pipe (corresponding
length in meters of straight pipes) *
Ø 80/125, terminal included
60 39 22 — — —
Max recommended length of
concentric ue pipe (corresponding
length in meters of straight pipes) *
Ø 100/150, terminal included
130*** 90*** 53*** 20 19 18
Max recommended length
(corresponding length in meters of
straight pipes) *
Rigid
Ø 80
Flex.
Ø 80
Rigid
Ø 80
Flex.
Ø 80
Rigid
Ø 80
Flex.
Ø 80
Rigid
Ø 100
Flex.
Ø 100
Rigid
Ø 100
Flex.
Ø 100
Rigid
Ø 100
Flex.
Ø 100
Rigid
Ø 100
Flex.
Ø 100
56 26 37 17 19 9 76 34 17 8 17 8 9 4
Available connection types B23 - B23P - C13(x) - C33(x) - C43(x) - C53(x)** - C63(x) - C83(x) - C93(x)
* See next page to calculate the ue pipe length.
** A C53 connection of the WaterMaster appliances requires an optional accessory.
*** Not recommended - For more information, please contact your ACV representative.
It is mandatory to ventilate the boiler room. The high or low air vent opening
dimensions depend on the appliance power and the boiler room size. Refer
to the local regulations in force.
… 22 …


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