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General| Model | RTWD |
|---|---|
| Refrigerant | R-134a |
| Compressor Type | Helical Rotary |
| Voltage | 460V |
| Operating Range | Leaving chilled-water temperature: 40°F to 65°F |
| Voltage Options | 575V |
Safety warnings and cautions for proper operation and user safety.
Recommendations for safe maintenance and service procedures.
Overview of RTWD and RTUD chiller types, components, and features.
Breakdown of model number digits for chiller series identification.
Model number digits defining unit application, type, and starter.
Guidelines and warnings for safely rigging and moving the chiller unit.
Requirements for foundation, isolation pads, and leveling the unit.
Instructions for removing shipping spacers before unit startup.
List of piping components for proper water system operation and safety.
Requirements for flow proving devices to protect the evaporator.
Requirements for installing pressure relief valves in water systems.
Procedures for draining condenser shells and water boxes.
Guidelines for sizing liquid lines to minimize refrigerant charge.
Procedures for determining system refrigerant charge.
Setting condenser elevation in TechView for proper EXV operation.
General guidelines for field-installed wiring and compliance.
Specific considerations for RTWD HSE versions regarding voltage and wiring.
Guidelines for power supply wiring, disconnects, and compliance.
Using programmable relays for system event annunciation.
Configuring relays for specific alarms and status outputs via TechView.
Providing analog output for condenser pressure indication.
Using LCI-C for chiller communication with Building Automation Systems.
Description of the chiller's refrigeration cycle.
How oil circulates and is managed within the RTWD/RTUD system.
How compressors are loaded and unloaded based on demand and wear.
Verifying voltage parameters for safe and correct motor operation.
Step-by-step guide for starting the unit after checkout.
Routine maintenance checks performed weekly and monthly.
Procedures for checking oil level and charging the compressor with oil.
When and how to replace the oil filter element.
Measures to protect the unit from freezing in low-temperature environments.
Predictive tools for detecting minor issues and planning maintenance.
Providing chemicals and inspections for water systems.
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