condair RDC-NA Dehumidification 0-10V Digital Wall Humidistat Instruction Manual

condair RDC-NA Dehumidification 0-10V Digital Wall Humidistat

Installation Instructions

This document covers the operation and installation instructions for the following Condair digital humidistat:

• Kit No. Description
• 2602797 0-10 V Digital Wall Humidistat

Mounting and Installation

Location:
Mount the humidity controller Condair RDC-NA in a protected and easy accessible place at least 1.5 m above the floor to the wall (mounting on flush-mounting or surface-mounting box). Observe the following placement notes:

• Do not place Condair RDC-NA in niches, behind, curtains, etc.
• Do not place the Condair RDC-NA near heat sources, within an area with direct air draft or direct sunlight.

Installation:
Refer to the installation overview in section 2.

1. Open the screw of the housing and remove the mounting plate with the connecting unit.
2. Connect wires of the connection cable to the terminals according to the wiring diagram.
3. At the place of location fix the mounting plate (plastic screw facing downwards) with two screws to the flush-mounting or wall-mounting box (see dimensional drawing).
4. Carefully snap the housing onto the mounting plate and fix it with the screw (do not tighten the screw too much).

Note: We recommend using 18-gauge wire, and a maximum <100 ft distance from the unit.

Installation overview

Wall Humidistat LCD Display

Fig. 1: Wall Humidistat LCD Display and function of control buttons

Configuration

Using a keypad, set specified humidity. For general health and comfort, a humidity setting of 50% is recommended.

Error Messages

• Err 1: The sensor element in the device is not properly inserted or is defective. Insert the sensor element correctly or replace it.
• Err2, 3 & 4: Hardware or memory problem. Replace device.

 Sensor Calibration

Sensor inputs can be calibrated if needed

Setting Parameters to Configure the Controller

The control operation is defined by parameters set using the standard operation terminal. There are two levels:

• User/display parameters (password 0009)
• Control parameters (password 00241)

How to change the parameters:

1. Press button simultaneously for three seconds. The display will show the firmware version and revision number.

2. Press the button to start login. The small digits show “CODE”.

3. Select correct code (password) using and buttons.
   Note: Code to access user parameters is “0009”. The access codes are fixed and cannot be changed.

4. Press the button after selecting the correct code.

5. Once logged in with “0009”, the user/display parameters are displayed immediately.

6. Select the parameters with the or button. Change a parameter by pressing the  button. The symbol is displayed to indicate that the parameter may be modified. Use the  or  button to adjust the value.

7. After you are done, press the button to save the new value and return to the selection level (the symbol disappears after the selection is saved). Pressing the  button without pressing the button will discard the value and return without saving.

8. Press the button to leave the menu. The unit will return to normal operation if no button is pressed for more than 5 minutes.

User Parameters

(Password 0009)

Table 1: User Parameters

0 = Switched OFF, 1 = Switched ON, 2 = state before power failure

| 0, 1, 2| 2
UP 03| Celsius or Fahrenheit: ON = Fahrenheit, OFF = Celsius| ON, OFF| OFF (Celsius)
UP 04| Select type of content for large digits (00= OFF): 01 = Input

02 = Setpoint

03 = Humidity Sensor

04 = External Temperature Sensor

| 00…04| 01

Control Parameters

(Password 0241)

Note: Only experts should change these settings! See the user parameter for the login procedure!

Table 2: Output Configuration

(Time the fan runs before control output starts)

| 0…255 s| 10 s
CP 03| Stop delay for fan

(Time the fan keeps running after control output stops)

| 0…255 s| 90 s

Table 3: Temperature Setback Configuration – *For humidity control only

OFF = Temperature set back is disabled ON =Temperature setback is enabled

| ON, OFF| OFF
CP 05| Setpoint limit at full setback| 0..100 %| 20 %
CP 06| Lower temperature limit:

Outside temperature with maximum setback

The setback will be equal to the minimum setpoint limit

| -40…60°C

-40…160°F

| -30 °C (-22°F)
CP 07| Upper temperature limit:

Outside temperature at begin of setback

| -40…60°C 40…160°F| 0 °C (32°F)
CP 08| Number of seconds taken into account to calculate the average input signal Low value = fast response

High value = slow response

| 0…100| 30

Product Specification

Power Supply

| Operating Voltage Power Consumption Terminal Connections| 24 V AC 50/60 Hz ± 10 %, 24 VDC ± 10 %

Max. 3 VA

For wires 0.34…2.5 mm2 (AWG 24…12)

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Sensor Probe (Humidity Sensor)

| Measuring element Range

Accuracy Hysteresis Repeatability Stability

| Capacitive measuring element 0…100 % RH

± 3.0 % at 25 °C

± 1%

± 0.1%

< 0.5% / Year

Signal Outputs

| Analog Outputs Analog Signal Resolution Maximum Load| AO1

0…10 VDC or 0…20mA

39 mV or 0.0078 mA

10 mA (at 0…10 VDC) 20 mA (at 0…20mA)

Environment

| Operation Temperature Humidity| IEC 721-3-3 0…50°C 32…122°F)

˂95 %rH not condensing

General

| Housing Materials Mounting Plate

Weight (including packaging)

| ABS

Galvanized Steel 260 g (9.2oz)

Wiring Diagrams

Wiring diagram RDC-NA for DA

Documents / Resources

| condair RDC-NA Dehumidification 0-10V Digital Wall Humidistat [pdf] Instruction Manual
RDC-NA Dehumidification 0-10V Digital Wall Humidistat, RDC-NA, Dehumidification 0-10V Digital Wall Humidistat, Digital Wall Humidistat, Wall Humidistat, Humidistat
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