Danfoss REPI Series

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REPI Series Digital Thermostat Manual
REPI series thermostats are used to control room temperature in industrial, commercial
and residential environment via controlling electric modulating valve with 0-10VDC (4-20mA)
control signal or floating control as well as damper actuator of VAV system.
Electronic control technology is adopted, with green backlit LCD display of: working mode
(cooling “
”, heating “ ”, ventilating “ ”, auto “ ” ); fan speed (low “ ”, med “ ”, high “ ”,
auto “
”); room temperature; setting temperature etc. push button: On/Off “ ”; mode
changeover “ ”; fan speed choose “ ” and temperature adjustment “ ” and “ ”.
Shell: PC + ABS retardant material.
Function :

Detect and Display room temperature

Room temperature setting

Fahrenheit or Celsius degree display

Timing sleep

Control On/Off of cooling and heating equipment

Selectable single speed or three speed fan control
Order Guide:
Output signal
Model
Floating Modulation
Fan
(Single/3-speed)
RS485
Network
Input
Control
Remote
Sensor
REPI-2 Cooling/Heating √ √ √
REPI-2N Cooling/Heating √ √ √ √
REPI-4 Cooling&Heating √ √ √
REPI-4N Cooling&Heating √ √ √ √
Fan: thermostat with fan functions, can be selected with single speed fan or three speed fan by setting parameter.
Remote Control: input signal can be selected by setting parameter.
Specification :

Set temperature range: 0 - 99.5℃ adjustable

Accuracy displayed:
0.1℃

Accuracy: ±0.5℃

Rated Power: < 1 W

Sensor type:
NTC

Display:
LCD

Power:
AC 24V±10％, 50Hz/60Hz

Output signal:
AC 24V×2 (0.5A resistive) ,
0 - 10VDC(5mA) / 4 - 20mA (600Ω)

Input signal: dry contact (NO)

Dimensions: 86×86×23mm (W×H×D)

Fixing screw width : 60mm (Standard)
Operations:
" On/Off: Press “ ” buttons to turn on; press “ ” again to turn off.
" Setpoint: With thermostat on, press “
” to reduce the setpoint, press “ ” to increase the setpoint, the setpoint step is
0.5℃, the setpoint will be confirmed automatically after 5 seconds, and then return to dispay status, press “ ” or “ ” to
check setpoint.
" Mode: With thermostat on, press “
” to change the working mode – Cooling “ ”， Heating “ ”, Vent " ", Auto “ ”
( Auto is available REPI-4/ REPI-4N).
" Fan Speed: With thermostat on, press “
” to select the desired speed – low speed “ ”, Med speed “ ”, High speed
“
”, auto “ ”. If single speed fan available, there’s only med speed “ ”.
Under auto speed fan, the fan speed will be changed automatically as below: in low speed when room temperature
is 1℃ difference with setpoint;in med speed when room temperature is 2 difference with setpoint℃ ; in High speed when
room temperature is 3 difference with setpoint. ℃
" Sleep: Thermostat will get into sleep function after programming.The set Temperature should to be.

Danfoss REPI Series Specifications

General

Brand	Danfoss
Model	REPI Series
Category	Thermostat
Language	English

Summary

Thermostat Functions

Room Temperature Detection and Display

Detects and displays current room temperature.

Room Temperature Setting

Allows the user to set the desired room temperature.

Temperature Unit Display

Option to display temperature in Fahrenheit or Celsius.

Timing Sleep Function

Enables a timed sleep function for the thermostat.

Equipment Control

Controls the On/Off operation of cooling and heating equipment.

Fan Speed Control

Selectable single-speed or three-speed fan control.

Thermostat Operations

Power OnOff

Controls the thermostat's power state using dedicated buttons.

Setpoint Adjustment

Allows increasing or decreasing the target temperature setpoint.

Working Mode Selection

Changes the operating mode (Cooling, Heating, Vent, Auto).

Fan Speed Selection

Enables selection of desired fan speed (low, med, high, auto).

Sleep Function Activation

Initiates the sleep function after programming is complete.

Parameter Configuration

Power On Status Setting

Configures the initial power status (Off, On, Hold).

Fan Speed Mode

Sets fan to single or three-speed operation.

Sensor Selection

Determines whether to use internal or remote sensor.

Temperature Format

Sets the display format to Celsius or Fahrenheit.

Setpoint Limits

Defines minimum and maximum adjustable setpoints.

Dead Band Configuration

Sets the dead band for REPI-4 models.

Sleep Setpoint Configuration

Configures setpoints for heating and cooling sleep modes.

Communication Settings

Configures communication parameters for specific models.

Input Signal Mode

Defines how the thermostat responds to input signals.

Reset Time Settings

Configures reset times for heating and cooling operations.

Output Port Configuration

Sets ports mode, modulation direction, and minimum signal.

Floating Time Configuration

Sets minimum and maximum times for floating control.

PID Control Settings

Enables/disables and sets override values for PID control.

Display Output Settings

Configures output value display based on PID control status.

Input Signal Management

Manages input signal validity and override conditions.

Display Mode

Selects whether to display room temperature or set-point.

External Sensor Configuration

Defines parameters for configuring external sensors.

Low Temperature Protection

Sets start and stop temperatures for low temp protection.

Switch Settings

PCB Switch Configuration

Details the function of each of the 5 poles switches on the PCB.

Mounting and Wiring

Installation Mounting Procedure

Step-by-step guide for mounting the thermostat unit.

Wiring Diagram and Notes

Illustrates wiring connections and provides important notes.