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General| Refrigerant Type | R-410A |
|---|---|
| Voltage | 208/230V |
| Phase | 1 |
| Sound Level (Outdoor Unit) | 72 dB |
| Cooling Capacity | 2.5 tons (30, 000 BTU/h) |
| SEER Rating | Up to 16 |
Lists the specific models covered by the manual, including design sequence.
Highlights the impact of man-made chemicals on the ozone layer and advocates responsible refrigerant handling.
Emphasizes the importance of certified technicians and adherence to laws for responsible refrigerant management.
Mandates adherence to electrical codes for grounding to prevent death or serious injury.
Describes the manual's content, focusing on installation, operation, and maintenance for air-cooled systems.
Provides a checklist for inspecting the unit upon arrival for shipping damage and verification of nameplate data.
Details minimum operating and service clearances required for proper unit operation and maintenance.
Specifies indoor installation requirements and conditions for EVP chillers.
References figures and tables for unit dimensional data and weight specifications.
Outlines requirements for installing units on ground level or rooftops, including anchoring and leveling.
Provides safety warnings and procedures for rigging heavy objects, emphasizing proper lifting techniques.
Explains methods to minimize sound and vibration transmission using isolators.
Details the procedure for installing neoprene isolators at each unit mounting point.
Provides installation procedures for spring isolators, including alignment and clearance adjustments.
Guides on how to level the unit accurately using base rails and shims or adjustable isolators.
Details the process of removing compressor shipping hardware and isolator bolts.
Summarizes key steps for successfully installing a commercial air-cooled condenser unit.
Outlines requirements for installing liquid, suction, and hot gas bypass lines for refrigerant circuits.
Specifies chilled water piping requirements and essential components for EVP chiller applications.
Details requirements for installing main power supply wiring, including overcurrent protection.
Covers requirements for installing control wiring for 115 VAC systems and specific unit types.
Explains wiring procedures for low voltage components in VAV, EVP Chiller, and Constant Volume units.
Describes necessary field-installed components for suction and liquid lines, including filters and valves.
Provides guidelines for proper suction line sizing to ensure oil return and minimize pressure drop.
Details liquid line sizing for sub-cooling and routing, including check valve and relief valve information.
Guides on installing the TXV and securing the TXV bulb, along with Frostat™ installation.
Discusses hot gas bypass usage and recommends Frostat™ as a preferred freeze-up protection method.
Explains the availability and installation of optional pressure gauges on units.
Instructs on accessing refrigerant connections, installing gauges, and handling pipe ends.
Details proper brazing techniques and safety precautions to prevent explosions and injuries.
Outlines procedures for leak testing refrigerant systems using nitrogen and leak detection methods.
Covers installation of chilled water piping, including isolation, insulation, and pipe sealant usage.
Specifies the installation of vents at high points for air purging during system filling.
Instructs on installing pressure gauges to monitor entering and leaving chilled water pressure.
Details the provision of shutoff valves for isolating system components during service.
Recommends using pipe unions for simplified disassembly and vibration eliminators.
Guides on installing thermometers to monitor evaporator entering and leaving water temperatures.
Explains the installation of a balancing cock in the leaving water line for balanced flow.
Instructs to install a pipe strainer in the water return line to protect against debris.
Details piping the chiller drain to a facility and providing a shutoff valve.
Explains the installation of a flow switch to prevent compressor operation if water flow drops.
Guides on installing the temperature sensor and sensor-well in the leaving water piping.
Details the installation of the freezestat bulb well and remote sensing bulb in the leaving water piping.
Instructs to flush piping before final connections and connect water pipes to the EVP chiller.
Provides guidelines for sizing and installing supply power wiring, including voltage compatibility checks.
Explains the function and operation of the externally mounted disconnect switch handle.
Covers main unit power wiring, including protection devices and compliance with NEC requirements.
Provides calculations for determining wire size, MCA, MOP, and fuse size for unit power wiring.
Details requirements for installing control wiring for 115 VAC components, including specific unit types.
Outlines installation of 115 VAC control wiring for components like bypass, fan interlocks, and thermostats.
Provides guidance for wiring AC control circuits, including conductor sizing and avoiding high voltage conduit.
Explains wiring for DC analog signals, emphasizing shielded cable and resistance limits.
Illustrates a typical economizer actuator circuit and connection to the unit control panel.
Describes requirements for field-provided temperature controllers for 'No Controls' units.
Explains the function of the W7100A controller in VAV systems for maintaining discharge air temperature.
Details the installation and function of the 6RT3 discharge air sensor in VAV systems.
Guides on field installation of the suction line thermostat for variable air volume controls.
Explains how to connect field-provided normally open contacts for night setback operation.
Covers the controls shipped with EVP chiller applications, including remote panels and sensors.
Details connecting the 6RT2 sensor to the remote panel via shielded cable.
Explains selecting an outside air thermostat based on the unit's ambient operating range.
Describes the Honeywell 973 Master Energy Controller used in constant volume systems.
Details the Honeywell T7067 thermostat and Q667 switching subbase for constant volume units.
Explains installing the 6RT1 discharge air sensor for constant volume control applications.
Warns against allowing liquid refrigerant into the suction line, which can cause compressor damage.
Covers pre-start steps for EVP chillers, including filling and venting the chilled water system.
Details the process of evacuating each refrigeration circuit using a vacuum pump to 100 microns or less.
Explains how to perform a standing vacuum test to check for leaks and moisture in the system.
Provides a checkout procedure for the W7100A discharge air controller using a digital voltmeter.
Details procedures for verifying the proper function of field-provided economizer actuators.
Outlines the checkout procedure for the W7100G chilled water controller using a digital ohmmeter.
Guides on checking the chilled water sensor by measuring resistance and converting it to temperature.
Details the checkout procedure for the Master Energy Controller, verifying output relay operation.
Explains how to check the 'Cooling' and 'Heating' output signals of the Zone Thermostat.
Guides on checking the 6RT1 discharge air sensor by measuring resistance and verifying temperature.
Explains how to measure and calculate voltage imbalance and its potential impact on motors.
Provides steps for determining and correcting electrical phasing using a phase sequence indicator.
Describes the operation of the VAV W7100A Discharge Air Controller and the Economizer Cycle.
Explains the W7100G controller's operation for EVP chiller applications and staging of cooling.
Highlights the importance of proper expansion valve adjustment for system reliability and performance.
Details condenser fan cycling accomplished through interlocking with pressure switches and thermostats.
Explains the function of low ambient dampers in extending unit operation to lower temperatures.
Discusses the importance of crankcase heaters for maintaining oil temperature and preventing foaming.
Describes the pump down cycle that occurs when the last compressor is turned off.
Explains the function of low ambient thermostats in further restricting airflow across the condenser.
Details how the HGBP valve regulates evaporator pressure by opening as suction pressure decreases.
Guides on mounting and connecting low ambient dampers and adjusting the controller setpoint.
Covers starting the chilled water circulating pump and checking flow device operation.
Instructs to set the freezestat at a minimum of 5oF above the chilled water freezing temperature.
Provides steps for verifying proper supply fan rotation and measuring system airflow.
Details methods for measuring airflow, including fan performance curves and static pressure drop.
Guides on starting compressors, verifying rotation, and charging the system with refrigerant.
Explains how to measure subcooling by calculating the difference between liquid line temp and saturated temp.
Provides steps for measuring liquid line pressure and temperature to determine subcooling.
Details how to measure suction line temperature and pressure to calculate superheat.
Specifies the type of oil to use and the appropriate oil charge for scroll compressors.
Outlines final checks before leaving the unit, including setting operating temperatures and securing panels.
Describes operational sounds of scroll compressors at shutdown and low ambient start-up.
Details compressor replacement, manifold piping, and oil replacement requirements.
Lists replacement fuses for control circuits, compressors, and condenser fans.
Provides a checklist for monthly maintenance of air handling equipment, including filter and coil checks.
Details safety precautions and inspection steps for air handling equipment during monthly maintenance.
Instructs on verifying fan rotation, checking motor bearings, and inspecting condenser coils.
Provides instructions for cleaning evaporator and condenser coils to enhance unit operating efficiency.
Covers post-maintenance checks, including verifying system operation and recording performance data.
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