Stulz Compact CWE User Manual

Compact CWE
Installation, Operation and Maintenance Manual
Perimeter Mounted Precision Air Conditioners
30 kW - 360 kW / 60 Hz

Stulz Compact CWE Specifications

General

Brand	Stulz
Model	Compact CWE
Category	Air Conditioner
Language	English

Summary

Introduction to Compact CWE Systems

General System Overview

Covers the system's general description, manufacturer, and basic operation.

Product Description and Features

Details the unit's design, configurations, and advanced control capabilities.

Product Warranty Information

Outlines the terms and conditions of the manufacturer's limited warranty.

Safety Guidelines and Precautions

Crucial safety information, including symbols, warnings, and general safety procedures.

General Safety Symbols

Explains the meaning and usage of safety alert symbols like NOTE, CAUTION, and WARNING.

Safety Summary and Procedures

Summarizes essential safety practices for personnel working with the equipment.

General Unit Design

Describes the physical construction, cabinet features, and internal layout of the unit.

Key Unit Components

Details specific internal components like the electric box, circuit breakers, heaters, coils, and EC fans.

Electric Box Access and Protection

Procedures for safely accessing and working within the unit's electrical enclosure.

Motor Protection and Heaters

Explains circuit breakers, motor start protectors, and optional heating elements.

Coils and EC Fan Systems

Information on cooling coils and the high-efficiency Electronically Commutated (EC) fans.

Temperature and Humidity Sensing

Description of standard and optional sensors for environmental control.

Optional Equipment Overview

Introduces various optional components that can be added to the system.

Humidifier and Condensate Pump Options

Details on optional humidification and condensate removal systems.

Smoke Detector and Firestat Options

Information on optional fire and smoke detection systems for safety.

Auto Transfer Switching System

Explains the optional automatic power switching for enhanced reliability.

Power Selector Switch and Indicators

Describes the function of the preferred power selector and indicator lights.

Installation Procedures

Equipment Receiving and Inspection

Steps for checking the unit upon delivery for damage and completeness.

Site Preparation Requirements

Guidelines for preparing the installation location, including clearances and environment.

Conditioned Space Requirements

Specifies environmental conditions necessary for optimal unit performance.

Rigging and Handling Instructions

Procedures for safely moving and positioning the unit.

Mounting and Placement Guidance

Recommendations for selecting the unit's final location and ensuring secure mounting.

Air Distribution Connections

Instructions for connecting ductwork for supply and return air configurations.

Upflow Air Pattern Connections

Details on connecting supply and return air for upflow units.

Downflow Air Pattern Connections

Details on connecting supply and return air for downflow units.

Field-Installed Optional Equipment

Instructions for installing optional components after initial unit placement.

Floor Stand Installation

Steps for installing an optional floor stand for downflow units.

Underfloor EC Fan Deployment

Procedures for installing and lowering EC fans for underfloor systems.

Lowering EC Fans to Operating Position

Detailed steps for positioning the EC fans after unit installation.

Plenum Box Installation

Guidelines for attaching an optional plenum box for air distribution.

Remote Display and Sensor Installation

Instructions for installing remote controller displays and T/H sensors.

Remote T/H Sensor Mounting and Types

Guidance on proper placement and different control types for remote sensors.

Remote Water Detector Installation

Instructions for installing spot-type and cable-type water leak detectors.

Piping Connections and Systems

Instructions for connecting water supply, return, and condensate lines.

Chilled and Hot Water Piping

Details on connecting chilled/hot water piping, including sizing and routing.

Condensate Drain System Setup

Information on connecting gravity drains and optional condensate pumps.

Gravity Drain Configuration

Steps for setting up a gravity drain line for condensate removal.

Condensate Pump Installation

Guidance on installing the optional condensate pump and its associated trap.

Humidifier Water Supply Connection

Instructions for connecting the water supply for the optional humidifier.

Utility and Control Wiring

Procedures for connecting main power and control wiring to the unit.

Main Power Supply Connections

Critical steps for safely connecting the main power to the unit.

System Control and Interface

Overview of the microprocessor controller and its user interface.

Optional Equipment Wiring

Requirements for connecting wiring for optional control devices.

Remote Sensor and Water Detector Wiring

Specific wiring instructions for optional remote sensors and detectors.

System Settings and Adjustments

Information on initial system configuration and parameter settings.

Chilled Water Circuit Configuration

Details on the chilled water valve settings and operation.

EC Fan Speed Control

Explanation of how EC fan speeds are controlled via the system controller.

Start-Up and Commissioning

Pre-Operation Checks

Steps to ensure the unit is ready for operation, including checklists and inspections.

Step-by-Step Start-Up Procedure

A detailed sequence of actions for safely starting and testing the unit.

Controller Programming and Setup

Guidance on configuring the microprocessor controller for initial operation.

Maintenance and Service

Periodic General Maintenance Schedule

Recommended routine maintenance tasks for optimal unit performance.

Compact CWE Unit Component Maintenance

Specific maintenance procedures for individual components of the A/C unit.

Air Filter Maintenance

Procedures for checking and replacing air filters to maintain airflow.

EC Fan System Checks

Periodic inspection of EC fan components and electrical connections.

Drain Pan and Coil Cleaning

Instructions for cleaning the drain pan and inspecting/cleaning the cooling coils.

Heat/Reheat and Humidifier Maintenance

Semi-annual checks for heating/reheat functions and humidifier cylinder life.

Condensate Pump Service

Guidelines for inspecting and cleaning the condensate pump.

Troubleshooting Common Issues

A comprehensive guide to diagnosing and resolving operational problems.

Field Service and Component Replacement

Procedures for performing on-site repairs and replacing unit components.

General Component Repair Procedures

General guidelines for common repairs and component replacements.

Cooling System Diagnostics and Leaks

Steps for troubleshooting cooling issues and detecting/repairing leaks.

Humidifier Cylinder Replacement Process

Detailed instructions for replacing the humidifier cylinder.

Air Filter Replacement Procedure

Steps for accessing and changing the unit's air filters.

Product Support and Resources

Technical Support Contact Information

How to reach SATS for technical assistance and troubleshooting.

Warranty Part Acquisition

Process for obtaining replacement parts under the unit's warranty.

Spare and Replacement Parts Ordering

Guidelines for ordering non-warranty parts, including pricing and return policies.

APPENDIX A - FORMS

Completed Installation Checklist

A detailed checklist to verify the proper completion of all installation tasks.

Maintenance Checklist

Monthly Maintenance Tasks

A list of maintenance activities to be performed monthly.

Semi-Annual Maintenance Tasks

A list of maintenance activities to be performed semi-annually.

Annual Maintenance Tasks

A list of maintenance activities to be performed annually.

Appendix B - Glossary

Technical Terms and Acronym Definitions

Definitions of key terms and acronyms used in the manual for clarity.