Honeywell TF 22 INSTALLATION AND OPERATING INSTRUCTIONS

INSTALLATION AND OPERATING INSTRUCTIONS
TF 22 REMOTE REGULATOR

DESCRIPTION

The TF 22 remote regulator is a temperature controller equipped with operating mode switch, room temperature sen­sor, and error indicator LED. It is supported by the following control systems:
DHC 23
Excel 500

INSTALLATION OF THE TF 22

Figure 1: Locations for installation
1. Remove housing cover of the remote regulator.
Figure 2: Removing housing cover
2. Screw remote regulator to the flush distribution box.
Figure 3: Dimensions of housing
3. Connect the cable coming from the controller.
Figure 4: Wiring diagram
Wiring of the terminals:
1 Desired value 4 not used 2 + 10 V 5 Room sensor 3Earth 6 LED
4. Return cover to housing by placing top edge against back­plate and snap lower part of cover onto housing.
Figure 5: Replacing of housing cover

OPERATION AND FUNCTIONS

Figure 6: Operating devices and indicators
1 Operating mode switch
2 LED (error indicator)
3 Temperature selector with scale
4 Temperature sensor (to the side)

TF 22 in operation with systems MCR 35, 36, 40, 200, DHC 23 and EXCEL 500

Operating mode switch

The operating mode switch allows for the selection of three different functions:
Position Operating
mode
Auto
Note

Temperature selector

Automatic Heating is controlled by timer.
Daytime Only desired value for day applies. Switch-off Heating is switched off. In the event of
The operating mode switch of the TF 22 does not in any way influence the warm water program.
The desired value can be changed only if the operating mode switch is set to positions Auto or
respectively.
Range: –7...+7 °C
Mid-point position: 0 °C (in relation to controller settings)
Function
danger of frost, the heating pump and the burner are automatically switched on.
LED
Function in operation with MCR 200: The LED is on if the controller has detected an error.
The LED may also be used with other systems. The input voltage is 5 – 24 V AC or DC.

TF 22 in operation with Excel 500 System

If the TF 22 is operated with the Excel 500 System, the temperature range and options of the operating mode switch can be chosen to suit your needs.
In such an installation, the feedback control system of the Excel System provides information on the current configuration of the switch.

TECHNICAL DATA

Sensor device: NTC thermistor Resistance: 20 k at 25 °C Temperature range: –15...+40 °C Dimensions (H×W×D): 103 × 98 × 28 mm Installation: Installation on wall or
on standard 60 mm distribution box Max. operating temperature / humidity: 0...50 °C / 5...95% humidity Max. storage temperature / humidity: –35...+70 °C / 5...95% humidity Electric connection: Terminals for max. 1.0 mm
wire diameter Protection class: IP 30, DIN 40 050
or IEC 144
Technical data regarding the NTC thermistor: see publication GE3R-1106.
2
Control Products
Honeywell AG Böblinger Strasse 17 D-71101 Schönaich Phone: (49) 7031 637 01 Fax: (49) 7031 637 493 http://europe.hbc.honeywell.com
Manufacturing location certified to
Subject to change without notice. Printed in Germany
EN1H-0140GE51 R1102
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