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Aspen ABM24 User Manual

Aspen ABM24
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IO-123075 Effective 12-01-11
INSTALLATION & OPERATING INSTRUCTIONS
ABM SERIES MULTI-POSITION AIR HANDLER
(HYDRONIC HEAT)
These instructions should be retained and kept adjacent to the unit for future use
MODEL
(INCLUDING HEATER MODEL #) ________________________________
SERIAL #____________________________________________________
INSTALLER __________________________________________________
INSTALLATION DATE _________________________________________
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Aspen ABM24 Specifications

General IconGeneral
Cooling Capacity24, 000 BTU/h
Cabinet ConstructionGalvanized Steel
CategoryAir Handler
Airflow800 CFM
Motor TypePSC
InsulationFoil Faced
Filter Type1"

Summary

Safety Instruction

Hazard Identification Symbols

Explains symbols used for warnings and cautions, indicating potential hazards.

Installation Procedures

Coil Connections and Safety

Critical warnings and precautions for connecting hydronic coils, including water temperature and solder types.

Metering Devices

Flowrator Piston Adjustment

TXV Coil Installation

Brazing Protection for TXV Components

Critical warning to protect TXV sensing bulb and body from heat during brazing.

TXV Selection and Sizing

Guidance on selecting TXV compatible with refrigerant and correctly sizing valves for unit capacity.

TXV Bulb Mounting

Bulb Contact and Positioning

Essential instructions for ensuring direct contact and correct placement of the TXV sensing bulb.

TXV Bulb Mounting Guidelines

Vertical Mounting Procedure

Specific instructions for mounting the TXV sensing bulb vertically for optimal performance.

Field Installed Expansion Valve Coils

Brazing and Connection Safety

Critical safety warnings regarding hot brazing joints and precautions for drilling.

Air Handler Orientation

Horizontal Installation Precautions

Critical requirement for an auxiliary drain pan in horizontal installations to prevent warranty voiding.

Counter Flow Installation Procedure

Electrical Installation Guide

Wiring and Power Supply Requirements

Details on power supply, wiring standards, and compliance with electrical codes.

System Start-up Procedures

Hydronic System Purging

Essential steps to purge air from the hydronic coil and water lines before operation.

Water Temperature and Safety

Critical warnings regarding hot water temperatures and safety precautions during startup.

System Start-up Adjustments

Operation and Maintenance Details

ABM Hydronic System Information

Common Problems and Solutions

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