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Danfoss RT 9E Thermostat Installation Guide

Installation guide  
Thermostat  
RT 9E, RT 14E, RT 101E, RT 107E, RT 123E  
089  
Approvals and standards:  
ATEX: EN 60079-0:2018; EN 60079-11:2012; IECEx: IEC 60079-0:2017;  
IEC 60079-11:2011  
UK-type Examination Certificate: BS EN IEC 60079-0:2018, BS EN IEC 60079-11:2018  
Specific conditions of use:  
The enclosure fascia has been coated with a layer of stainless steel to prevent the  
accumulation of electrostatic charge. In order to ensure that there is no accumulation of  
electrostatic charge on the enclosure, the end user shall ensure that the external metal  
work of the enclosure is locally bonded to earth. Information on the durability of the  
coating with regards to use of the equipment is contained within the instruction manual.  
Fig. 1  
Fig. 2  
RT 9E  
RT 14E  
RT 101E  
[°C]  
[°C]  
-45  
[°C]  
[°C]  
[°C]  
[°C]  
-35  
-25  
-15  
C
C
C
-5  
A
A
B
B
A
B
RT 107E  
RT 123E  
[°C]  
[°C]  
[°C]  
[°C]  
C
C
A: Range setting  
B: Diffential obtained  
C: Differential setting  
A
B
A
B
Fig. 3  
Fig. 4  
Fig. 5  
AN179486440929en-001201 | 1  
© Danfoss | Climate Solutions | 2024.01  
GeneralDetails
NameDanfoss RT 9E Thermostat Installation Guide
MakeDanfoss
LanguageEnglish
FiletypePDF (Download)
File size0.41 MB
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Danfoss RT 9E Thermostat Installation Guide
Get the free PDF manual for the Danfoss RT 9E Thermostat Installation Guide and access setup steps, usage instructions, and troubleshooting tips. 👉 View online or download now to keep your thermostat running smoothly!

Danfoss RT 9E Manual: Questions and Answers

What do terminals START, STOP, and DIFF mean on the Danfoss RT 9E?

START is the make contact, STOP is the break contact, and DIFF is the differential. Installation Guide, p. 2

How do I set up the Danfoss RT 9E for my application?

Rotate the knob to set the minimum actuating temperature on the main scale. Then rotate the differential adjusting nut according to the nomogram for your model.

  1. Set the thermostat for minimum actuating temperature by rotating knob (5) and reading main scale (9).
  2. Set the differential adjusting nut (19) using the nomogram in fig. 3 for your model.
  3. Verify that maximum actuating temperature equals the temperature setting plus the differential. Installation Guide, p. 2

How do I install the bulb in a water tank with the Danfoss RT?

Use either a capillary stuffing box or a bulb pocket. If using a bulb pocket, follow the bulb fitting shown in fig. 4. Installation Guide, p. 2

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