Instructions for installation and use
Akva Lux II VXe
12 | © Danfoss | Produced by Danfoss Redan A/S | 2021.02
xxxxxxx
8. RECIRCULATION
Circulation set for Akva Lux II VXe substations is available as extra equip-
ment. The set applies to various substation types, therefore excess
components may occur.
It is to be recommended to prepare the substation for recircu-
lation BEFORE mounting it on the wall.
Fig. 1
Circulation set code No. 145H4438:
1. Sheathed steel hose
2. 1/8 x 4 mm nipple/bushing
3. Mounting bracket
4. Hexagon nipple
5. Screw plug (4 mm)
Fig. 2
Remove console (6) incl. ECL controller and meter (not shown in
photo) to make room for mounting the circulation kit. The console
is removed by pulling it out / up so that it comes free of bypass
thermostat, manometer and domestic hot water controller.
Fig. 3
Remove the nipples/plugs from the domestic hot water controller
(use a 6 mm Allen key). Do not re-use the plugs!
Fig. 4
Remove/demunt capillary tube on T-piece.
Fig. 5
Seal off T-piece with a 4 mm plug (5).
Fig. 6
Fit/screw circulation hose end (steel hose) onto the controller (in the
rear connection piece). Fit capillary tube on the DHW controller by
means of 1/8 x 4 mm nippel/bushing (2).
Fig. 7
Carry the circulation hose behind and down alongside the cold water
pipe as shown and mount the supplied bracket (3), as shown, with two
screws and secure the hose with a 1½ “hexagonal nipple - thus prepared
for establishing a possible circulation connection.
NOTE!
Remember always to mount circulation pump and non-return
valve on the circulation pipe.
This not part of the circulation set.
New function (from bypass to circulation thermostat)
When the substation is connected to the household recirculation
system, the thermostat will function as a circulation thermostat and
control the circulation water temperature, independently of the set
DHW temperature. It is recommended to set the termostat in pos. 3.
Fig. 2
Fig. 3
Fig. 5
Fig. 7
Fig. 4
Fig. 6
Fig. 1
1
2
3
4
5
6
