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General| Model Number | YMAA 0045 |
|---|---|
| Category | Heat Pump |
| Refrigerant | R-410A |
| Cooling Capacity | 4.5 kW |
| Operating Range (Heating) | 17° - 75°F |
| Power Supply | 208-230V, 1-phase, 60Hz |
Overview of YORK Air-Cooled Modular Chillers and Heat Pumps.
Details Johnson Controls' warranty terms for equipment and materials.
General safety guidelines, standards, and responsibility for safe operation.
Information on suitability for application, structural, mechanical, and access hazards.
Details risks associated with heat radiation, rotating parts, sharp edges, and refrigerants.
Describes YORK Air-Cooled Modular Chillers and Heat Pumps.
Overview of the unit's primary systems and features.
Details compressors, refrigerant circuits, and expansion valves.
Describes condensers, EC motors, controllers, and power panels.
Details optional features like sound kits, vibration isolation, and hydro kits.
Illustrates the refrigerant flow for cooling and heating modes.
Visual identification of major unit components for different models.
Explains the Product Identification Number (PIN) structure.
Guidelines for safe rigging and lifting of the unit.
Procedures for unit delivery, storage, and necessary precautions.
Specifies recommended ambient and water temperatures for operation and storage.
Instructions for moving units by forklift and using lifting lugs.
Essential checks to perform before unit operation.
Guidance on selecting installation location and required clearances.
Details for connecting chilled liquid piping and pipework arrangement.
Instructions for field wiring, power supply, and control wiring.
Specifies temperature, flow, and pressure limits for unit operation.
Table providing dimensions, weights, and component details.
Presents voltage, current, and short circuit data for unit models.
Illustrates the electrical connections for unit models.
Diagrams and notes on required installation clearances.
Details on isolator types, loads, dimensions, and weight distribution.
Step-by-step instructions for installing spring and neoprene isolators.
General procedures and checks before unit startup.
Detailed checklist covering pre-start checks and system verification.
Describes the step-by-step process of unit startup and operation.
Explains control modes, pump settings, and PID control parameters.
Introduces the Optiview LT HMI for unit configuration and readout.
Explains the HMI layout, access levels, and basic navigation.
Lists programmable parameters for unit operation and temperature setpoints.
Details how to view, screen, and reset unit faults.
Covers HMI display menus, software upgrades, schedule, and diagnosis.
Introduces the optional touch screen wire controller for remote operation.
Describes the layout and icons of the wire controller interface.
Explains how to start/stop the unit, set operating mode, and temperature.
Covers date/time, schedule, parameter settings, and fault diagnosis.
Explains how the unit manages cooling or heating load.
Details suction, discharge, and compress ratio limit controls.
Covers inverter frequency control and compressor sequencing.
Explains liquid temperature and variable leaving water temperature controls.
Describes defrost sequences and heater operations.
Explains how alarm conditions are indicated and managed.
Describes user access to outputs, configuration, and inputs.
Lists analog, digital inputs, and digital/PWM outputs.
How to view system and unit information for monitoring and diagnosis.
Common problems, their causes, and suggested solutions.
General guidance on maintenance for compressors, coils, and other components.
Details Modbus protocol, BACnet points, and fault code definitions.
