HP H4H3 manual 410A Quick Reference Guide, Trip LED and Alert LED, Alert Flash Code

Page 16

INSTALLATION INSTRUCTIONS

3-phase R-410A Split System Heat Pump

 

 

 

 

 

 

 

 

 

 

 

Figure 17

 

Comfort Alertt Diagnostics (some models)

 

 

Miswired Module Indication

 

Troubleshooting Information

 

 

Green LED is not on, module

Determine if both R and C module terminals are connected. Verify voltage is

 

does not power up

present at module's R and C terminals.

 

 

 

 

 

Green LED intermittent, mod‐

Determine if R and Y terminals are wired in reverse. Verify module's R and C ter‐

 

ule powers up only when com‐

minals have a constant source.

 

 

pressor runs

 

 

 

 

 

 

 

TRIP LED is on but system

Verify Y terminal is wired properly per OEM wiring diagram. Verify voltage at con‐

 

and compressor check OK

tactor coil falls below 0.5VAC when off. Verify 24VAC is present across Y and C

 

 

when thermostat demand signal is present. If not, R and C are reverse wired.

 

 

 

 

 

TRIP LED and ALERT LED

Verify R and C terminals are supplied with 19-28VAC.

 

 

flashing together

 

 

 

 

 

 

 

 

ALERT Flash Code 3

Verify Y terminal is connected to 24VAC at contactor coil. Verify voltage at

 

 

(Compressor short cycling)

contactor coil falls below 0.5VAC when off.

 

 

displayed incorrectly

 

 

 

 

ALERT Flash Code 5 or 6

Check that compressor T1 and T3 wires are through module's current sensing

 

(Open Circuit, Missing Phase)

holes. Verify Y terminal is connected to 24VAC at contactor coil. Verify voltage at

 

displayed incorrectly

contactor coil falls below 0.5VAC when off.

 

 

 

 

 

ALERT Flash Code 8

Determine if module's Y terminal is connected. Verify Y terminal is connected to

 

(Welded Contactor) displayed

24VAC at contactor coil. Verify 24VAC is present across Y and C when

ther‐

 

incorrectly

mostat demand signal is present. If not, R and C are reversed wired. Verify

 

 

 

voltage at contactor coil falls below 0.5VAC when off. Review.

 

 

R-410A QUICK REFERENCE GUIDE

R-410A refrigerant operates at 50% - 70% higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with R-410A.

R-410A refrigerant cylinders are rose colored.

Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.

R-410A systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose.

Manifold sets should be 750 psig high-side and 200 psig low-side with 520 psig low-side retard.

Use hoses with 750 psig service pressure rating.

Leak detectors should be designed to detect HFC refrigerant.

R-410A, as with other HFC refrigerants, is only compatible with POE oils.

POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

POE oils may cause damage to certain plastics and roofing materials.

Vacuum pumps will not remove moisture from oil.

A liquid line filter-drier is required on every unit.

Do not use liquid line filter-driers with rated working pressures less than 600 psig.

Do not install a suction line filter-drier in liquid line.

Wrap all filter-driers and service valves with wet cloth when brazing.

Do not use with an R-22 TXV.

If indoor unit is equipped with an R-22 TXV, it must be changed to an R-410A TXV.

Do not use capillary tube indoor coils.

Never open system to atmosphere while it is under a vacuum.

When system must be opened for service, break vacuum with dry nitrogen and replace all filter-driers.

Do not vent R-410A into the atmosphere.

Observe all WARNINGS, CAUTIONS, NOTES, and bold text.

16

International Comfort Products, LLC

506 01 5102 00

Lewisburg, TN 37091

 

 

Image 16
Contents Installation Instructions Table of ContentsSafety Considerations Inspect NEW UnitLocation ClearancesClearances various examples Ground Level Installation Roof TOP InstallationUnit Support Fastening Unit DownRefrigeration System Installed at Indoor Coil Routing and Suspending Refrigerant LinesLiquid Line Filter-Drier Outdoor Unit Higher than Indoor UnitBrazing Connections Fire Hazard Installation Instructions Service ValvesEvacuating Line SET and Indoor Coil Opening Service Valves Deep Vacuum Gauge ResponseSystem Conditions Triple Evacuation MethodElectrical Wiring Typical Thermostat Control Circuit Connections Defrost System Defrost ThermostatDefrost Thermostat Defrost Control BoardSTART-UP Procedure Cooling ModeHeating Mode Refrigerant ChargeSequence of Operation Troubleshooting MaintenanceComfort Alertt Diagnostics some models Yellow Alert Missing PhaseYellow Alert Reverse Phase Red Trip LED410A Quick Reference Guide Trip LED and Alert LEDAlert Flash Code Alert Flash Code 5 or

H4H3 specifications

The HP H4H3 is a versatile and efficient device designed primarily for business and professional use. This printer exemplifies HP's commitment to innovation, focusing on performance, quality, and convenience. One of the standout features of the HP H4H3 is its ability to produce high-quality prints at an impressive speed, making it ideal for busy office environments. The printer is capable of delivering professional-grade documents with a resolution that can reach up to 1200 x 1200 dpi, ensuring that text and images come out crisp and vibrant.

One of the key technologies that enhance the functionality of the HP H4H3 is the HP LaserJet technology, which allows for faster warm-up times and reduced energy consumption compared to traditional laser printers. This tech not only optimizes power usage but also minimizes the environmental impact, aligning with modern sustainability goals. Another significant characteristic is its robust paper handling capabilities, which can accommodate various paper sizes and types, ranging from envelopes to legal-sized documents. This versatility allows users to tackle various printing tasks without the need for constant paper changes.

The HP H4H3 also incorporates advanced connectivity features, such as USB, Ethernet, and wireless options, providing flexibility in how users choose to connect their devices. The inclusion of mobile printing capabilities through HP Smart App and other cloud services provides users with the convenience of printing from smartphones and tablets, catering to an increasingly mobile workforce.

Security is another focal area in the design of the HP H4H3. It comes equipped with robust built-in security features that help protect sensitive data from unauthorized access. With options for secure printing and user authentication, it ensures that confidential documents remain secure, even in shared environments.

Furthermore, the printer is designed with user-friendliness in mind, featuring an intuitive control panel that simplifies navigation and settings adjustments. The HP H4H3 also supports automatic duplex printing, reducing paper consumption and further promoting eco-friendly practices in the workplace.

In summary, the HP H4H3 stands out due to its impressive print quality, fast performance, numerous connectivity options, and strong security features. It is a reliable choice for businesses looking to enhance their printing capabilities while prioritizing efficiency and sustainability. Whether for everyday documents or high-stakes presentations, the HP H4H3 delivers exceptional results that meet the demands of modern work environments.