Danfoss KP 98 Thermostat Type

Specifications:

• Thermostat Type: KP 98 (Cross ambient)
• Enclosure and Tightness: IP30 in accordance with EN 60529 / IEC 529
• Application: UL-requirements – 120 V a.c.: 16 FLA, 96 LRA; 240 V a.c.: 8 FLA, 48 LRA; 240 V d.c.: 12 W pilot duty

Product Usage Instructions

Thermostat (Cross Ambient = Adsorption Charged)
Fig. 1 – Component Identification

1. Setting spindle, “OIL” (LT) – Setting of max. oil temperature
2. Main arm
3. Setting spindle, “HT” – Setting of max. high-pressure gas temperature
4. Locking plate

Technical Data

• Function
  The function at a rise or drop in temperature appears in Figs. 8 and 9.
• Permissible Ambient Temperature (Thermostat Housing) -40 to 65 °C (up to 80 °C for a maximum of 2 hours)
• Max. Permissible Bulb Temperatures
  • “OIL” sensor (060L113166): 150 °C
  • “HT” bulb: 250 °C
• Enclosure and Tightness
  • IP30 in accordance with EN 60529 / IEC 529
  • This is achieved when the unit is mounted on a flat panel or a bracket that covers all open holes.
• Contact Load
  Refer to the unit’s scale.
• UL Application Requirements:
  • 120 V a.c.: 16 FLA, 96 LRA
  • 240 V a.c.: 8 FLA, 48 LRA
  • 240 V d.c.: 12 W pilot duty

Mounting Instructions

• Bulb Placement
  • Refer to Figs. 3, 4, and 6 for correct positioning.
• Mounting Brackets (Fig. 2)
  • Two types of brackets with screws and washers (ordered separately).
  • If using different screws, ensure they do not project more than 1.5 mm into the unit.
• Compressor Installation
  • Fig. 3: Compressor with KP 98
  • Fig. 4: Sensor fitted to tube
  • Fig. 5: Clamp (ordered separately)
  • Fig. 6: Bulb in pocket
  • Fig. 7: Sensor pocket (ordered separately)
    • Tip: Use heat-conducting paste (Code No. 041E0110) to improve heat transfer between bulb and pocket.

Electrical Connections

Fig. 8 – Wiring Warning
CAUTION: Disconnect power supply before wiring or servicing. Do not touch live parts with fingers or tools.

Cable Entry Options

• Fig. 9: Plastic entry (6–14 mm cable)
• Fig. 10: Pg 13.5 screwed cable connection with special nut (6–14 mm cable, ordered separately)
  For 8–16 mm cable, use a standard Pg 16 connection.

Testing Procedure
Fig. 11 – Testing

• Tilt the main arm (3)
• Simultaneously press the “RESET” knobs
• Note: Only use the described testing method

Setting Instructions

Fig. 8 and 12 – Scale Definitions

• START: Starting temperature
• STOP: Stop temperature
• DIFF: Differential

Setting Max Temperatures

• Use “OIL” and “HT” scales
• “OIL” Differential: Fixed at 14 °C
• “HT” Differential: Fixed at 25 °C

Restart After Shutdown

• Press the “RESET” buttons
• Restart only occurs once the temperature drops by the set differential value

Locking and Sealing

• Fig. 13 and 14 – Locking Plate
  Lock both “OIL” and “HT” spindles using the locking plate
• Fig. 15 – Sealing Screw
  Use sealing screw (ordered separately) if sealing is required

Danfoss A/S

• Climate Solutions
• danfoss.com
• +45 7488 2222

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FAQ

Q: How do I improve heat transfer from the sensor pocket to the bulb?
A: To improve heat transfer, use a heat conducting paste (Code No. 041E0110) when installing the sensor pocket.

Documents / Resources

Danfoss KP 98 Thermostat Type [pdf] Installation Guide KP 98 Thermostat Type, KP 98, Thermostat Type, Type

References

• User Manual