Brunata Optuna H
UK-QB101575/29.05.2012
Installation Guide
Pages 6/16
Brunata a/s · Vesterlundvej 14 · 2730 Herlev · tlf. +45 77 77 70 00 · fax +45 77 77 70 01 · [email protected] · www.brunata.dk
2.0 Installation of temperature sensors
Handle the temperature sensors carefully! The sensor cables are fitted with coloured type labels:
Red: sensor in hot line, blue: sensor in cold line.
The programmed installation location is shown in the information loop.
The free temperature sensor can be installed in a ball valve or in a pocket conforming to the requirements for this
type of sensor. If the sensor is installed in a pocket, it must be inserted as far as the bottom of the pocket and secured.
For installation in a ball valve, a 5-piece coupling set is enclosed in a separate bag. Make sure the sensor is mounted
symmetrically. The connecting cables must not be shortened or extended. The maximum cable length is ten meters.
The sensors should preferably be installed directly immersed. Insert one O-ring in the sensor hole using the mounting
pin supplied. Only tighten the brass or plastic screw by hand (2-3 Nm); tighten the plug screw with a torque of approx.
12 Nm.
1 2 3 4 5.1 5.2 6
Meter type
Sensor marking
Terminal
Installation position
Energy meter in return line
Red
5 Hot 6
Forward
Blue
7 Cold 8
On meter
Energy meter in forward line
Red
5 Hot 6
On meter
Blue
7 Cold 8
Return
Cooling meter in return line
Blue
7 Cold 8
Forward
Red
5 Hot 6
On meter
Cooling meter in forward line
Blue
7 Cold 8
On meter
Red
5 Hot 6
Return
Air conditioning meter in return line
Red
5 Hot 6
Forward
Blue
7 Cold 8
On meter
Air conditioning meter in forward line
Red
5 Hot 6
On meter
Blue
7 Cold 8
Return
