TOPVEX SF Installation instruction 130324 CEA006

Installation |
13
5.4.4 Temperature sensor, supply air and outdoor air damper
Mount the enclosed duct sensor in the supply air duct.
Fig. 7 Temp sensor and damper
A
Sensor, supply air
B
Motorized damper, outdoor air (accessory)
The damper (accessory) is also preventing the hot water battery from freezing by closing when the returning water in
the battery is below a set temperature, +8 °C, alternatively if the supply air temperature drops below a set temperature
(adjustable).
5.4.5 Extract fan
Extract fan can be connected to the unit and be operated parallel with the supply fan. The extract fan can be controlled
in two ways.
• Use the pre-configured digital output to activate the extract fan DO 5. The output is active when the supply fan in
the unit is running.
Table 1 From External connection
10
DO ref DO reference
G (24V AC)
12
1
DO 2
Outdoor/Exhaust air damper
24V AC
Max. 2,0 A continuous load
WP L1
Circulation pump hot water system
230V AC
13
1
DO 3
Activate cooling
14
1
DO 4
Sum alarm
24 VAC
15
1
D0 5
Start external extract fan
24 VAC
90
Agnd AO Reference Neutral
91 AO 1
Control signal, water heating
0–10V DC
93 AO 3
Control signal, cooling
0–10V DC
94 A0 4
Control signal, external extract fan (optional)
chapter 5.4.5
0-10V DC
1
Maximum current load for all DO combined: 8A
• Setup a 0-10V DC analog output to control extract fan e.g EC fans, frequency inverters or other speed controllers.
130324 | A006