Danfoss KP Series User Manual

© Danfoss A/S RI.5D.A2.22 → DKRCC.PI.C0A.A1.22-520H2749 3
Adjustment spindles location
Note!
Remove lockplate before thermostat
adjustment. Replace lockplate after
adjustment (if desired).
RANGE DIFFERENTIAL
See printed instruction on top of control See printed instruction on top of control
increase temp. (warmer): turn CW Increase: turn CW
decrease temp. (colder): turn CCW decrease: turn CCW
(use adjustment knob) (use adjustment knob or screwdriver)
Determination of di erential
For KP w/ vapor charge and auto. reset (KP 61, KP 62, KP 63, KP 68, KP 69): Use graphs to determine correct di erential
Example:
HSP = +45°F (+5.6°C) => DIFF (from graph):
LSP = +32°F (0°C 13°F (7.2°C) (value which has to be
set on di . scale).
For KP w/ adsorption charge (KP 71, KP 73, KP 75, KP 77, KP 79, KP 81):
The di erential will be HSP less LSP
Example: HSP – LSP = DIFF.
45°F – 35°F = 10°F
(7°C) (5°C) (2°C)
Note:
(Load Option A) (Load Option B)
CUT-IN = HSP or CUT-IN = LSP
CUT-OUT = LSP CUT-OUT = HSP
See “Wiring”

Danfoss KP Series Specifications

General

Dimensions	Varies by model
Weight	Varies by model
Contact function	SPDT
Reset function	Automatic or Manual
Media	Air, water, oil
Approvals	EN
Differential	Varies by model
Connection Size	1/2"
Control Range	Varies by model
Accuracy	Varies by model
Power Supply	None (mechanical thermostat)
Switching Current	16A (resistive load)
Protection Class	IP54
Mounting	Varies by model

Summary

Pressure Controls KP 61-81

Control Types and Bulb Specifications

Details different control types (auto/manual reset) and sensor bulb types (vapor/adsorption charge).

Installation and Environmental Requirements

Covers mounting, enclosure (IP33), cable entry, and ambient temperature limits.

Maximum Bulb Temperature Limits

Specifies the maximum allowable temperatures for the sensor bulbs based on model.

Evaporator Capillary Tube Length

Defines minimum required lengths for capillary tubes connected to the evaporator.

Wiring and Load Options

Wiring Connections and Safety

Guidelines for safe wiring practices, terminal block usage, and load ratings.

Load Option A vs. Load Option B

Explains how terminals 1-4 and 1-2 function for temperature rise/drop in different load options.

Manual Tripping and Reset

Manual Tripping Procedure

Instructions for testing electrical contacts by manually tripping the control.

Manual Reset Procedure

Steps to resume operation after a safety cut-out, including reset knob usage.

Adjustment Spindles and Differential Setting

Adjustment Spindle Location and Usage

Identifies range and differential adjustment spindles and their operation (CW/CCW).

Determining Differential

Utilizes graphs to determine the correct differential for vapor charge controls.

Differential for Adsorption Controls

Explains how to calculate differential for adsorption charge controls (KP 71-81).

Setting High and Low Set Points

Setting for Auto Reset Controls

Procedure to adjust range (HSP) and differential spindles for auto reset models.

Setting for Manual Reset Controls

Procedure to adjust range (LSP) for manual reset models where differential is fixed.

Hand Switch Operation

Details the function of the hand switch in auto and micro-stop positions.