Multi-Zone Heat Pump Refrigerant Piping Installation

NOTE: Refrigerant Piping Installation for all of the multi-zone heat pump models.

Interconnecting Tubing Specs

S2HB, T2HB, T3HB, & T4HB models:

Nominal

Maximum

Maximum

Liquid

Suction

Circuit

Line

Line

Length

Lift

Capacity

OD

OD

 

 

9,000

100’

35’

1/4”

1/2”

12,000

100’

35’

1/4”

1/2”

18,000

100’

35’

3/8”

5/8”*

24,000

100’

35’

3/8”

3/4”

*CAH24, UNH24, WLH24 Suction Connection size is 3/4” O.D. and must bush down to 5/8” for 18,000 Btuh circuits at the indoor unit.

The system will support refrigerant runs to the inside unit of up to 100' equivalent feet with a 35' rise included. The units are furnished with sweat connections and are equipped with refrigerant valves and

Schrader fittings for charging and taking pressure readings. The following precau- tions should be made:

Be certain no burrs remain on the fittings.

Use only clean refrigeration tubing.

Use tube benders to guard against kinking.

Avoid piping on wet and rainy days and insulate suction line. Be certain that plastic end caps remain in place when inserting through wall openings. Isolate tubing from transmitting vibra- tion to the building or unit and avoid contact with sharp edges. Refrigera- tion valves should be wrapped with a wet rag "heat sink" to protect valves while brazing.

Piston/Orifice Change Kit Installation

When a WLH24 or UNH24 air handler is matched with a T2HB or T3HB contain- ing a 24,000 Btuh nominal capacity circuit, the air handler must have it’s stock piston changed from 0.059 to 0.063.

Air Handler

A 24,000 Btuh nominal circuit can be identified by the “4” in the model number capacity field (i.e.

T2HBx4xx). Refer to the instructions sup- plied with kit part number; 240006777.

Circuit Designators: 9 = 9000 Btuh • 2 = 12000 Btuh • 8 = 18000 Btuh • 4 = 24000 Btuh (ex. - 8400 consists of one 18000 Btuh compressor and one 24000 Btuh compressor)

Model #

Air Handler

Condenser

Btuh

Factory installed Piston/Orifice Size

Field Changeover

Piston/Orifice Size

WLH24

or

UNH24

T2HB2400 T2HB8400 T2HB4400 T3HB9940 T3HB9240 T3HB2240

.059”

.063”

Note: this kit is only supplied with the above Heat Pump models.

Multi-zone Heat Pump Condensing Units

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EMI manual Multi-Zone Heat Pump Refrigerant Piping Installation, S2HB, T2HB, T3HB, & T4HB models

S2HB, T2HB, T3HB, T4HB specifications

The EMI T4HB, T3HB, T2HB, and S2HB models represent innovative advancements in the field of electronic security and surveillance technology. Each model is designed to meet specific security needs while integrating cutting-edge features, making them suitable for a variety of applications, from residential monitoring to large-scale facility management.

Starting with the T4HB, this model is known for its high-definition video capabilities and robust build quality. It offers 4K resolution, providing crystal-clear image quality that captures fine details, making it easier to identify subjects. The T4HB is equipped with advanced night vision technology, allowing it to perform optimally in low light conditions. Additionally, it features motion detection and smart analytics that minimize false alarms and provide users with real-time alerts. The integration with cloud storage solutions ensures that footage is securely saved and easily accessible from various devices.

The T3HB is a slightly scaled-back version, yet it does not compromise on essential features. It supports 1080p full HD resolution and incorporates many of the same intelligent analytics capabilities as its T4HB counterpart. With a wide-angle lens, the T3HB allows coverage of larger areas with fewer cameras. Its weather-resistant design makes it suitable for both indoor and outdoor installations, protecting it from the elements and ensuring reliable performance.

Next is the T2HB, which balances performance and affordability. This model retains high-definition video quality and basic motion detection features, making it ideal for budget-conscious consumers who still want reliable surveillance. The T2HB focuses on user-friendliness with simple setup processes and mobile app integration that allows for easy remote monitoring, making it an attractive option for homeowners.

Lastly, the S2HB is engineered for versatility. It combines the advantages of all previous models, providing excellent video quality and configurable settings for personalized security needs. The S2HB stands out with its smart home compatibility, enabling integration with various smart devices in a home security ecosystem. Its compact design allows for flexible mounting options without compromising performance.

Together, the EMI T4HB, T3HB, T2HB, and S2HB models reflect a commitment to quality, innovation, and user satisfaction in the modern security landscape. They cater to various needs, ensuring that users can find a suitable solution for their surveillance requirements while benefiting from advanced technologies that enhance security and peace of mind.