PI Thermostat TEF
V1.3a, 20100504
© Vector Controls GmbH, Switzerland
Page 7/8
Subject to alteration
Setting of control parameters
Warning! Only experts should change these settings!
The password for the expert user is 14. See setting for user parameters for login details.
Expert Description
Display Standard
E0
Actuator running time Opening, 10…990 seconds
01 - 99
10
E1
Actuator running time Closing, 10…990 seconds
01 – 99
10
E2 Control
mode
0 = PI control, 1 =On/Off control
0, 1
0
E3
P – Band / Hysteresis Temperature loop, Select the
accuracy of the temperature loop in degrees Kelvin.
0.5…8.0 2.0
E4
Maximum of I part of Analog Loop, Limits the influence of
the integral part on the output signal. 0 disables the I part
0.0…A0 (100)
0.0
E5
Tn, Reset time of Analog loop integral, 0.5 - 30 min
0.5…30
02
E6
For on/off control only: 2 pipe or 4 pipe system
0 = 2 pipe system, 1 = 4 pipe system
0, 1
0
E7
For 2-pipe systems only: Enable Fan Control
0 = No Fan control, 1 = Fan Control
0, 1
0
E8
Reversing Difference in percentage of actuator position
00…A0 (100)
10
E9
Switching Difference in percentage of actuator position
00…A0 (100)
5
Mechanical Design
The unit consists of three parts:
•
The base unit, which contains the terminal connecters, temperature sensors and control logic
•
The front plate, which holds the buttons
•
The base plate, to ease installation
Mounting location
•
On an easy accessible interior wall, approx.
1.5 m above the floor in an area of average temperature.
•
Avoid direct sunlight or other heat sources, e.g. the area above radiators and heat emitting electrical
equipment.
•
Avoid locations behind doors, outside walls and below or above air discharge grills and diffusers.
•
Location of mounting is less critical if external temperature sensors are used.
Installation
1.
Install the mounting plate on the wall box. The type
of screws required depends on the wall box. For
Chinese standard M4x25 screws are most suitable.
The mounting plate provides holes for most
international standards. Horizontal distance of
mounting screws ranges from 35 to 65 mm; vertical
distances are 58 to 85 mm.
2.
On the upper side of the controller, there are two
clips. Press them inside using a small screwdriver.
3.
Separate the front plate of the controller with the
base by opening it carefully. Unplug the connector
from the button.
4.
Connect the wirings as shown in the diagram below.
Pay attention to follow local guidelines regarding
insulation and wire sizes.
5.
Connect the main body to the mounting plate by
holding it in place and inserting the two small
screws that are part of the package in the upper left
and lower right corner.
6.
Reconnect the plug of the button and press the
front plate into place. Insert the lower part first and
then press down the upper part until hearing a click.