MAXA HCA1 22 Manual Usuario página 54

II. 2.5.6 Installation instructions for electro thermal valve with actuator
The valve/actuator electrothermic set must be mounted on the unit after its installation, following the right schemas
depending on the unit model.
3V2C – Hydronic kit for HCA1 22-50
3V2CG – Hydronic kit for HCA1 60
Components part
1) n°1 3-way valve body with ø 3/4", M-type connections.
2) n°1 electrothermic actuator for on/off control, 230V.
3) n°2 copper tubes with diameter ø18mm.
4) 2 3/4" nipple connections with MM-type threaded
connections.
5. n° 4 monoblock F-type connections with dia. of 3/4".
2V2C – Hydronic kit for HCA1 22-50
2V2CG – Hydronic kit for HCA1 60
Components part
1) n°1 2-way valve body with M-type 3/4" connections.
2) n°1 electrothermic actuator for on/off control, 230V.
3) n°1 copper tube with diamter of ø18 mm.
4) n°1 3/4" nipple connection with MM-type threaded
connections.
5) set of 2 monoblock F-type 3/4" connections.
3V4C – Hydronic kit for HCA1/4 50
3V4CG – Hydronic kit for HCA1/4 - 60
Components part
1) n°1 3 way valve body, M-type threaded connections
with diamter of ø 3/4".
2) 2 nipple connections with MM-type 3/4" connections.
3) set of 4 monoblock F-type connections with dia. 3/4".
4) set of 2 copper pipes with diameter of ø 18 mm.
5) One 3-way valve body with M-type ½" connections.
6) set of 2 nipple MM-type connections with dia. of 1/2".
7) set of 4 monoblock 1/2" connection.
8) 2 copper pipes with diameter of ø 14 mm.
9) 2 electrothermic actuator for on/off control, 230V.
2V4C – Hydronic kit for HCA1/4 50
2V4CG – Hydronic kit for HCA1/4 60
Components part
1) 1 2-way valve body with M-type connections and
diameter of ø 3/4".
2) 1 Nipple connections with MM-type threaded
connections and diameter of 3/4".
3) 2 F-type monoblock connections with dia. of 3/4"F.
4) 1 copper pipe with diameter of ø 18 mm
5) n°1 2-way valve body with M-type connections and
with diamter of ø 1/2".
6) n°1 nipple connection with MM-type threaded
connections and diameter of 1/2".
7) Set of 2 monoblock F-type connections.
8) Copper pipe with diamter of ø 14 mm.
9) 2 electrothermic actuators for on/off control, 230V
3V4C HYDRONIC KIT INSTALLATION
a) Pipes with diamter of ø 18 mm
1) Screw the two nipple fittings with MM-type 3/4",
threaded connections, please seal them with Teflon tape
connections on-board unit or, alternatively, use aerobic
adhesive sealant (Loctite ®, Loxeal ®)
2) Insert the monoblock fitting to the ends of tubes.
3) Install the the tube with vertical misalignment in the
water outlet connection (see Fig. 1).
4) Make sure that the two tubes are in contact.
Connect the valve to the terminal board of the electric panel as illustrated in the wiring diagrams.
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5) Connect the valve body to the free end of the pipes,
please be sure that part of them enter in the valve body.
6) Tighten the four monoblock fittings.
7) Screw the electrothermic actuator.
8) Make the electrical connection of the electrothermic
actuator.
9) Connect the valve to the terminal block of the electric
box respecting the proper wiring diagrams.
b) Pipes with diamter of 14 mm
The procedure is quite similar to one for pipes with 18
mm diameter.
Pay particular attention when installing the valve body,
the tubes must be inserted into the valve body with
approximately 3 mm.
c) Mount the auxiliary tray under the set valve inserting
the drain pipe into the proper hole, then level it and fix it
with three screws provided.
Insulate the three screws and the bottom part of the
water tray using insulating material. For the connection of
steel tubes of the system, you must make sure that are
aligned and supported avoiding to exercice abnormal
strains on the unit. When the system is filled with water,
please check the tightness of all fittings.
Notes: The valve body must be installed in the proper
direction of the water flow towards the water outlet from
the unit.
WARNING! KIT INSTALLATION: 3V2C, 2V2C, 2V4C
(Fig. 2), 3V2CG, 2V2CG, 3V4CG (Fig. 3) e 2V4CG.
The installation of these valves is operationally quite
similar to that fulfilled for the 3V4C kit.
Fig. 2
WARNING! For 2V2C, 2V2CG, 2V4C and 2V4GC kit.
Install the 2-way valve in the collectors inlet side
from the unit and make sure that the arrow reported
on the valve body is in the same direction as water
flow towards water inlet of the unit
WARNING!
The minimum water temperature sensor must be
mounted upstream of the valves of water inlet side.
Fig.1
Fig. 3