Modine Manufacturing SCW

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8-504.11

5H1015480001

INSTALLATION AND SERVICE MANUAL

Ductless Split Ceiling Cassette

Models SSD, SSH and SCW

Models CSD, CSH and CCW

December, 2023

THIS MANUAL IS THE PROPERTY OF THE OWNER.

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB.

WARNING

1. Improper installation, adjustment, alteration,

service or maintenance can cause property

damage, injury or death, and could cause

exposure to substances which have been

determined by various state agencies to cause

cancer, birth defects or other reproductive

harm. Read the installation, operating and

maintenance instructions thoroughly before

installing or servicing this equipment.

2. Units with DX evaporator coils (refer to

model nomenclature) contain R-410A high

pressure refrigerant. Hazards exist that could

result in personal injury or death. Installation,

maintenance, and service must only be

performed by an HVAC technician qualied

in R-410A refrigerant and using proper tools

and equipment. Due to much higher pressure

of R-410A refrigerant, DO NOT USE service

equipment or tools designed for refrigerants

other than R410A.

AVERTISSEMENT

1. Une installation, un réglage, une altération, une

réparation ou une maintenance impropre risque

de causer des dommages, des blessures ou

la mort, et d’engendrer une exposition à des

substances dont certains États ont déterminé

qu’elles étaient cancérogènes ou pouvaient

causer des malformations à la naissance et

des problèmes de reproduction. Lisez bien

les instructions d’installation, d’utilisation et de

maintenance avant d’installer ou de réparer cet

appareil.

AVERTISSEMENT

2. Les unités munies de serpentins évaporateurs

DX (reportez-vous à la nomenclature du

modèle) contiennent du uide frigorigène à

haute pression R-410A. Des dangers existent

qui, s’ils se matérialisent, pourraient entraîner

des blessures ou la mort. L’installation,

l’entretien et le service ne doivent être e󰀨ectués

que par un technicien de CVC qualié quant à

l’usage du uide frigorigène R-410A en utilisant

les outils et l’équipement appropriés. En raison

de la pression beaucoup plus élevée du uide

frigorigène R-410A, N’utilisez PAS des outils

ou de l’équipement de service qui ne sont pas

conçus spéciquement pour le R-410A.

IMPORTANT

1. The use of this manual is specically intended

for a qualied installation and service agency. A

qualied installation and service agency must

perform all installation and service of these

appliances.

2. Units with DX evaporator coils (refer to model

nomenclature) contain the refrigerant R-410A.

Review the R-410A Material Safety Data Sheet

(MSDS) for hazards and rst aid measures.

IMPORTANT

1. Ce manuel est spéciquement destiné

au personnel d’une entreprise qualiée

d’installation et d’entretien. Toutes les

opérations d’installation et d’entretien doivent

être conées à une entreprise qualiée.

2. Les unités munies de serpentins évaporateurs

DX (reportez-vous à la nomenclature du

modèle) contiennent du uide frigorigène

R-410A. Pour les dangers et les mesures de

premiers soins, consultez la che signalétique

du R-410A.

Main Page

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Summary

Special Precautions

Hazard Intensity Levels

Defines DANGER, WARNING, CAUTION, and IMPORTANT hazard levels for risk assessment.

General Safety Warnings

Groups DANGER, WARNING, CAUTION, and ATTENTION statements for critical safety guidance.

Unit Location

Unpacking and Preparation

Instructions for removing packaging and preparing the unit for installation.

Ceiling Opening Sizes

Details required opening dimensions for unit installation into false ceilings.

Thermostat Placement

Guidelines for optimal wall-mounted thermostat mounting location.

Installation

Hanger Bolt Installation

Details on installing hanger bolts for unit mounting.

Installation Guide and Setup

Describes the use of the installation guide for height adjustment.

Condensate Piping

Guidelines for proper condensate drain installation and slope.

Duct Collar Installation

Instructions for attaching supply and outside air duct collars.

DX and Heat Pump Unit Piping

Instructions for piping DX and heat pump units with refrigerant.

Hot;Chilled Water Coil Piping

Instructions for piping hot/chilled water coils with water.

Wiring

Guidelines for electrical wiring connections and compliance.

Disconnect Switch Installation

Information on factory-installed disconnect switches.

Terminal Strip Connections

How to properly connect wires to terminal strips.

Fascia Assembly

Steps for assembling the unit fascia after connections.

Start-Up Procedure

Pre-Start Checks

Essential checks before initial unit operation.

DX;Heat Pump Control Circuit Checks

Verifying control circuits for DX and heat pump units.

Chilled Water Control Circuit Checks

Verifying control circuits for chilled water units.

Sequence of Operation

Electro-Mechanical Controls Operation

Operation of units with electro-mechanical controls.

Micro-Processor Controls Overview

Overview of microprocessor control operation and components.

Jumper Link Settings

Configuration options via jumper links on the PCB.

Micro-Processor Interface

Receiver Functionality

Details of the IR receiver on the unit fascia.

Remote Transmitter Functions

Operation of the remote control for the unit.

Transmitter Temperature Set-Point

Adjusting the desired temperature via remote.

Transmitter Clock and Timer Functions

Setting time, day, and timer operations via remote.

Remote Control Battery Replacement

Procedure for replacing remote control batteries.

Dimensions

Small Chassis Chilled Water Units

Dimensional drawings for small chassis chilled water units.

Medium Chassis Chilled Water Units

Dimensional drawings for medium chassis chilled water units.

Large Chassis Chilled Water Units

Dimensional drawings for large chassis chilled water units.

Medium Chassis DX;Heat Pump Units

Dimensional drawings for medium chassis DX/heat pump units.

Large Chassis DX;Heat Pump Units

Dimensional drawings for large chassis DX/heat pump units.

Technical Data

DX Cooling;Heat Pump Units - IP Units

Technical specifications for DX cooling and heat pump units in IP.

DX Cooling;Heat Pump Units - SI Units

Technical specifications for DX cooling and heat pump units in SI.

Chilled Water Units - IP Units

Technical specifications for chilled water units in IP.

Chilled Water Units - SI Units

Technical specifications for chilled water units in SI.

Exploded Unit Drawing & Parts List

Chilled Water Units (Sizes 08 & 12)

Illustrated parts breakdown for chilled water units.

DX & Heat Pump Units (Sizes 18-42)

Illustrated parts breakdown for DX and heat pump units.

Maintenance

Indoor Unit Maintenance Schedule

Routine checks and cleaning tasks for indoor units.

Filter Removal and Cleaning

Procedures for accessing and cleaning air filters.

Disassembly Procedures

Steps for dismantling unit components for maintenance.

Replacement Parts Information

Details on ordering and identifying replacement parts.

Model Identification

Model Number Designations

Explanation of model number coding and its meaning.

Troubleshooting

General Safety and Precautions

Important safety notes before troubleshooting.

Indoor Unit Fault Categories

Table detailing common indoor unit problems, causes, and remedies.