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Dettson DCAH Series - User Manual

Dettson DCAH Series
31 pages
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UNITÉ DE
CONDITIONNEMENT D’AIR
Imprimé au Canada sur papier 100% recyclé
DCAH-36-2
DCAHV-36-2
DCAH-55-3
Modèles:
2013-07-24 X40200 Rév. G
Guide d’installation et
manuel du propriétaire
3400, Boulevard Industriel
Sherbrooke, Qc, Canada, J1L 1V8
Fabriqué par:
Industries Dettson Inc
Attention
Ne pas altérer votre unité ou
ses contrôles. Appeler un
technicien qualifié.
INSTALLATEUR / TECHNICIEN :
Utiliser les renseignements dans ce manuel pour l’installation et l’entretien
de l’appareil et garder le document près de l’unité pour références
ultérieures.
PROPRIÉTAIRE :
S.V.P. Gardez ce manuel près de l’unité pour références ultérieures.
cus
www.dettson.ca

Table of Contents

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Summary

Safety Considerations

Safety Information: Danger, Warning, and Caution

Explains hazard signal words (DANGER, WARNING, CAUTION) and their meanings.

Important Information

Outlines critical safety regulations and homeowner responsibilities for safe operation.

Danger of Freezing

Provides precautions to prevent freezing damage during cold weather shutdown.

Installation Location and Ductwork

Location

Guidelines for selecting an appropriate installation location for the unit.

Ductwork

Instructions for connecting the discharge and return ductwork to the unit.

Coil and Electrical Installation

Heating Coil Installation

Details on installing the heating coil, water piping, and pump.

Cooling Coil Installation

Steps for installing the cooling coil on the left or right side of the cabinet.

Electrical System

Requirements for electrical installation according to codes and wiring practices.

Thermostat and Blower Settings

Thermostat Installation

Guidance on installing and wiring the thermostat for temperature control.

Supply Air Adjustments and Blower Settings

How to configure blower settings using the Fan Control Board taps.

Heat CFM Adjustment (Violet Wire)

Adjusting heating mode airflow based on temperature requirements.

Outdoor Unit Size (Blue Wire)

Selecting the outdoor unit size for proper airflow and performance.

System Type (Orange Wire)

Configuring the system type for AC operation and airflow adjustments.

AC;HP CFM Adjust (Black Wire)

Adjusting AC/HP airflow for nominal, low, or high settings.

On;Off Delay (White Wire)

Selecting delay profiles for heating mode operation.

Continuous Fan (Yellow Wire)

Setting fan speed for continuous fan operation.

Low-Voltage Circuit

Details on the low-voltage circuit, fusing, and grounding.

Accessory Installation

Humidifier and Humidistat Connection

Instructions for connecting a humidifier and humidistat.

Electronic Air Cleaner (EAC) Connections

How to connect an electronic air cleaner to the fan control board.

Dehumidify Capability with Standard Humidistat Connection

Using a humidistat to increase latent capacity via airflow reduction.

Operation Sequences

Start-Up Procedures

Pre-operation checks and procedures before energizing the unit.

Heating Start-Up

Specific start-up procedures for the heating mode.

Operating Sequence - Variable Speed ECM Motor

Details on how the unit operates in different modes (continuous fan, cooling, heating).

Continuous Fan Operation

Describes blower operation during continuous fan mode.

Cooling Mode - Single Stage

Explains single-stage cooling operation sequence.

Cooling Mode - Two Stage

Details the sequence for two-stage cooling operation.

Cooling Mode - Dehumidification

Describes operation sequence for dehumidification.

Heating Mode Operation

Explains the heating mode operation sequence.

Maintenance Procedures

Blower and Motor Maintenance

Instructions for cleaning and inspecting the blower and motor.

Heating and Cooling Coils Maintenance

Guidance on inspecting and cleaning the heating and cooling coils.

Filter Maintenance

Recommendations for filter cleaning or replacement frequency.

Drain Maintenance

Instructions for checking and verifying drain lines.

Unit Information

Technical Data

Replacement Parts

Warranty Policy

Dettson DCAH Series Specifications

General IconGeneral
BrandDettson
ModelDCAH Series
CategoryAir Conditioner
LanguageEnglish

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