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General| Brand | Ingersoll-Rand |
|---|---|
| Model | Precedent WSC090E |
| Category | Heat Pump |
| Language | English |
Outlines necessary PPE and safety measures when working with fiberglass insulation.
Guidelines for ground-level and rooftop foundations, including anchoring.
Steps to verify the correct curb, alignment, and sealing for proper installation.
Provides instructions and warnings for safely rigging and lifting the unit.
Checklist for verifying installation steps, shipping damage, and location requirements.
Details the conversion process for 3-5 ton units to horizontal discharge.
Details the conversion process for 5-10 ton units to horizontal discharge.
Provides instructions for replacing the TCO-A limit control for horizontal duct configurations.
Step-by-step instructions for installing the gas supply line through the base.
Lists requirements for gas piping, pressure, and safety for gas heat units.
Instructions for converting condensate drain to front or through-the-base.
Details location and connection for standard field power wiring.
Explains wiring location and connection for the TBUE electrical option.
Provides guidelines for 24 VAC control wiring, including conductor sizing and routing.
Details wiring for DC analog signals, emphasizing conductor sizing and resistance.
Explains how to measure and calculate voltage imbalance and its impact.
Describes how to check and correct electrical phasing for proper motor rotation.
Describes the RTRM's self-diagnostics and the Liteport LED indication.
Details three methods (Step, Resistance, Auto) for testing unit components.
Introduces the two control options: electromechanical and ReliaTel™.
Explains the ReliaTel™ control features and RTRM operation.
Details how the RTRM controls cooling stages and compressors.
Explains the RTRM's control strategy for low ambient temperatures.
Describes how the RTOM modulates the supply fan for static pressure control.
Explains the shutdown procedure when supply air pressure exceeds a set limit.
Details methods for controlling supply air temperature.
Details how economizer and primary cooling control supply air temperature.
Describes methods for controlling zone temperature.
Overview of applications for Single Zone VAV systems.
Explains control of the indoor fan speed via the RTOM for SZVAV units.
Explains economizer control for zone temperature and compressor engagement.
Explains ReliaTel system control for dehumidification.
Details setting minimum ventilation air and selecting outside air suitability methods.
Explains RTRM control of first and second stage electric heat.
Describes RTRM communication with the Ignition module for gas heat control.
Details RTRM control of heating stages, compressors, and auxiliary heat.
Explains the system for defrosting coils based on icing conditions.
Instructions for verifying airflow using fan performance tables and speed adjustments.
Steps for starting up the economizer, including minimum position settings.
Setting the minimum damper position for economizers on specific units.
Critical steps for starting compressors safely and correctly.
Details checking rotation, phasing, and operating pressures for scroll compressors.
Continues the service test for heating start-up procedures.
Final checks before leaving the unit, including programming, panel security, and power application.
Instructions for inspecting, adjusting, and replacing fan belts for proper tension.
Provides detailed instructions for cleaning coils to maintain efficiency.
