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General| Model Number | 50YDH |
|---|---|
| Category | Heat Pump |
| Refrigerant Type | R-410A |
| Voltage | 208/230V |
| Phase | 1 |
General safety, refrigerant, and construction warnings.
Handling and storage guidelines.
Initial setup procedures and safety notes.
Site selection and suspension for horizontal units.
Procedure for cleaning the air coil.
Steps for changing discharge direction.
Constraints on return air setup.
Drain lines and ductwork setup.
Site selection and sound isolation for vertical units.
Sound reduction methods and condensate drainage for vertical units.
Fitting types and flow controller mounting.
General information for ground loop systems.
Antifreeze use and control settings for ground loops.
Open loop systems, water quality, and controls.
Adjusting flow and setting temperature limits.
Warning against specific valve types for water regulation.
Guidelines for water parameters and material compatibility.
Piping examples and double tank setup.
Critical warning about scald risk with high temperature settings.
Sensor placement and microprocessor control for HWG.
Critical warnings regarding sensors and high temperatures.
DIP switch functions for pump, temperature, and status.
Wiring caution and tank setup steps.
Piping requirements and system refill process.
Step-by-step procedure for starting the HWG.
Warnings for shock hazards and conductor material.
Specifications for GT-PX and GT-PG series units.
Code compliance, conduit use, and power connection.
Adjusting fan speed for PSC motors.
Specific wiring instructions for the HWG pump.
Wiring to controls and limit setting.
Connecting accessories and solenoid valves.
Diagram for dual-stage water flow regulation.
Location, wire gauge, and important safety notes.
Wiring examples for different fan types.
Interface board, speed taps, and CFM adjustments.
Control modes for humidity removal.
Tables and diagrams for configuring ECM boards.
Entering test mode and configuring inputs.
Jumper and DIP switch settings.
Table detailing status indicators and relays.
Anti-short cycle, random start, fault retry, lockout.
High/low pressure, temperature limits, condensate, voltage.
Using the LED for status and fault codes.
Initial startup sequence and delays.
Summary of thermostat signals and unit response.
Table for checking thermistor readings.
Signal descriptions and compatibility notes.
Environmental and water temperature limits.
Tables for operating and setup conditions.
Checklist before powering the unit.
Warnings about water flow and freezing.
Step-by-step instructions for initial startup.
Verifying water flow and refrigerant pressures.
Warnings about voltage and water flow.
Data for GT-PX and GT-PG units.
Table for adjusting performance with antifreeze.
Detailed performance tables.
Detailed performance tables.
Detailed performance tables.
Detailed performance tables.
Detailed performance tables.
Detailed performance tables.
Procedures for cleaning and upkeep.
Checks and cleaning for key components.
Cabinet cleaning and system integrity checks.
Preliminary checks and CXM control troubleshooting.
Verifying electrical signals and component operation.
Critical safety notice for servicing.
Visual guide for diagnosing issues and safety notice.
Detailed table of faults, causes, and solutions.
Troubleshooting specific operational faults.
Issues like insufficient capacity, high head pressure, low suction.
Form for recording operational data during troubleshooting.
Coverage, limitations, and labor allowance.
Record of changes and updates to the manual.
