condair DCC-NA 0-10V Digital Duct Humidistat Package Instruction Manual

condair DCC-NA 0-10V Digital Duct Humidistat Package

Product Information

The DCC-NA – 0-10V Digital Duct Humidistat Package is a Condair digital humidistat package that is used to control the humidity levels in ducts. The package includes a 2-10V duct sensor and a wall humidistat without a sensor. The product is designed to be mounted downstream of the steam distribution at a distance of 1.5 times the absorption distance, which is typically 10-12 feet or 3-3.7 meters. The product is equipped with user and control parameters that can be accessed by entering the correct password. The user parameters include UP 00, UP 01, UP 02, UP 03, and UP 04, which allow users to enable change of operation modes, change of setpoints, state after a power failure, Celsius or Fahrenheit selection, and type of content for large digits. The control parameters include CP 00, CP 01, CP 02, and CP 03, which allow experts to change the minimum setpoint limit in humidification mode, maximum setpoint limit in humidification mode, and start delay for fans.

Product Usage Instructions

Follow the below instructions to install the DCC-NA – 0-10V Digital Duct Humidistat Package:

1. Choose a location for installation downstream of the steam distribution at a distance of 1.5 times the absorption distance (typically 10-12 feet or 3-3.7 meters).
2. Drill a hole with a diameter of 16 mm (5/8 inch) at the chosen location and four holes for the self-tapping screws into the duct.
3. Loosen the screw on the housing cover and open the cover.
4. Lead the connecting cable through the cable gland and connect wires to the terminal according to the wiring diagram.
5. Stick the gasket on the sensor side centrally on the housing (self-adhesive).
6. Insert the probe into the hole in the duct, then fix the housing to the duct using the four self-tapping screws provided.
7. Close the cover and fix it with the screw (do not tighten the screw too much).

Follow the below instructions to access the user and control parameters

1. Press and hold both the < and > buttons 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 the correct code (password) using the < and > buttons. The 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.

Package Installation Instructions

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

Kit No. Component No. Part No. Description
2597929 2520266 * 1509857 2-10V Duct Sensor
2520261 Wall Humidistat without sensor

• Component No. 2520266 consist of two parts.

Mounting and Installation

1509857 – Duct Sensor Installation Location

Refer to installation overviews in section 2. The duct sensor should be installed directly on the duct in an area where the air is well mixed with uniform flow.

• Used as supply air humidity sensor: If the sensor is used as a supply air humidity sensor it should be mounted downstream of the steam distribution at a distance 1.5 times the absorption distance (typically 10- 12 ft or 3-3.7m).
• Used as return air humidity sensor: If the sensor is used as a return air humidity sensor it should be mounted close to the air inlet but downstream from a return fan if one is present.

Installation

1. At the place of location drill a hole with a diameter of 16 mm (5/8″) as well as 4 holes for the self-tapping screws into the duct.
2. Loosen the screw on the housing cover and open the cover.
3. Lead connecting cable through the cable gland and connect wires to the terminal according to the wiring diagram.
4. Stick the gasket on the sensor side centrally on the housing (self-adhesive).
5. Insert the probe into the hole in the duct, then fix the housing to the duct using the 4 self-tapping screws provided.
6. Close the cover 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.

Humidistat w/o Sensor Installation

Location
Install the digital wall humidity controller in a protected and easily accessible place at last 1.5 m above the floor to the wall (mounting on flush- mounting or surface-mounting box).

Installation
Refer to installation overviews in section 2.

1. Open the screw of the housing and remove 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 mounting plate (plastic screw facing downwards) with two screws to the flush-mounting or wall-mounting box (see dimensional drawing).
4. Carefully snap housing onto the mounting plate and fix it with the screw (do not tighten screw too much).

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

Installation overviews

DDC-NA 2597929/2520261

Wall Humidistat LCD Display

Wall Humidistat LCD Display

Configuration

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

Error Messages

• AL5 & AL7: Measured value of the external sensor fell below the lower limit of 5% RH. Check the cabling of the DCC and CDC. After eliminating the fault, acknowledge the alarm with the .
• 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 user parameter for 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 Voltage| Operating voltage Power consumption Terminal connection| 24 V AC 50/60 Hz ± 10 %, 24 VDC ± 10 %

Max. 3 VA

For wires 0.34…2.5 mm2 (AWG 24…12)

---|---|---
Signal input| Humidity sensor input| UI1
Signal Output| Analog Outputs Output Signal Resolution Maximum Load| A01

DC 0…10 VDC 39 mV, 0.078 mA

10 Ma (at 0…10 VDC)

20 Ma (at 0…20mA)

Environment| Operation:

Climatic Conditions Temperature Humidity

| IEC 721-3-3

Class 3 K5

0…50°C (32…122°F)

<95 % rH not condensing

General| Housing material Mounting Plate

Weight Condair CRC (including packing)

| ABS

Galvanized steel 260 g (9.2 oz)

Wiring Diagrams

Wiring diagram DCC-NA with CDC-NA for RS, EL, GS, US and SE

Wiring diagram DCC-NA with CDC-NA for DL and ME

Wiring diagram DCC-NA with CDC-NA, RCC-NA and APS for RS, EL, GS, US and SE

Wiring diagram DCC-NA with CDC-NA, CHD-NA and APS for RS, EL, GS, US and SE

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