Danfoss RT 107 Thermostat Installation Guide
- June 4, 2024
- Danfoss
Table of Contents
ENGINEERING
TOMORROW
Installation guide
Thermostat
RT 107, RT 108, RT 120, RT 123, RT 124 017R9321
RT 107 Thermostat
Info for UK customers only: Danfoss Ltd., 22 Wycombe End, HP9 1NB, 
RT 107, RT 108, RT 120, RT 123, RT 124
Technical data
Contact load: switch 017-4030, see Fig. 6.
Enclosure: IP66 acc. to IEC 529 and EN60529 For versions with Max. or Min.
reset, IP54 Permissible ambient temperature: -50 °C – 70 °C
Installation
A set of Pg13.5 cable gland is attached to the RT in a separate bag. To ensure
IP66 (units with automatic reset) or IP54 (units with external reset) grade of
RT enclosure it is necessary to assemble this gland as shown in fig. 2. If
this gland is not used with a cable, a metal blinding should be also
assembled. RT units can be fitted in any position.
For correct fitting of sensor, pockets see
Fig. 1 with outdoor installation, the unit should be protected against direct
rainfall.
It could, for example, be placed under a lean-to roof.
Setting
Set the thermostat ( Fig. 7) to the function required (make or break) on
falling temperature. Read off the setting on the main scale Fig. 7.
Example
An RT 123 is required to regulate the temperature in a drying oven.
Maximum temperature 188 °C
Minimum temperature 180 °C
Differential 188 °C – 180 °C = 8 °C
- Connect the heating element to thermostat terminals 2-1
- Set the thermostat on 180 °C with the knob (Fig. 7)
- Set the differential adjusting nut (Fig. 7) on number 3 which can be found by reading of the nomogram for the RT 123 in Fig. 8
A. Range setting
B. Differential obtained
C. Differential setting
© Danfoss | Climate Solutions | 2021.07
2| AN20348644102001-000102
Documents / Resources
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Danfoss RT 107
Thermostat
[pdf] Installation Guide
RT 107, RT 108, RT 120, RT 123, RT 124, RT 107, Thermostat, RT 107 Thermostat
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