Heat Controller HSS, HTS SERIES SPLIT SYSTEM Refrigeration Installation, Line Set Installation

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T h e Q u a l i t y L e a d e r i n C o n d i t i o n i n g A i r

R e s i d e n t i a l S p l i t - 6 0 H z R 2 2 & R 4 1 0 A

R e v. : 5 J u n e , 2 0 0 8

Refrigeration Installation

x CAUTION! x

CAUTION! R-410A systems operate at higher pressures than R-22 systems. Be certain that service equipment (gauges, tools, etc.) is rated for R-410A. Some R-22 service equipment may not be acceptable.

x CAUTION! x

CAUTION! Installation of a factory supplied liquid line bi-directional filter drier is required. Never install a suction line filter in the liquid line.

Line Set Installation

Figures 12a through 13b illustrate typical installations with the “indoor” and “outdoor” versions of the compressor section matched to either an air handler (fan coil) or add-on furnace coil. Table 4 shows typical line-set diameters at various lengths. Lineset lengths should be kept to a minimum and should always be installed with care to avoid kinking. Line sets over 60 feet [18 meters] long are not recommended due to potential oil transport problems and excessive pressure drop. If the line set is kinked or distorted, and it cannot be formed back into its original shape, the damaged portion of the line should be replaced. A restricted line set will effect the performance of the system.

A reversible heat pump filter drier is installed on the liquid line inside the compressor section cabinet (R-22 units only).

Table 4: Lineset Diameters and Charge Information

R-410A models are shipped with a filter drier (loose) inside the cabinet that must be installed in the liquid line at the line set.

All brazing should be performed using nitrogen circulating at 2-3 psi [13.8-20.7 kPa] to prevent oxidation inside the tubing. All linesets should be insulated with a minimum of 1/2” [13mm] thick closed cell insulation. All insulation tubing should be sealed using a UV resistant paint or covering to prevent deterioration from sunlight.

When passing refrigerant lines through a wall, seal opening with silicon-based caulk. Avoid direct contact with water pipes, duct work, floor joists, wall studs, floors or other structural components that could transmit compressor vibration. Do not suspend refrigerant tubing from joists with rigid straps. Do not attach line set to the wall. When necessary, use hanger straps with isolation sleeves to minimize tranmission of line set vibration to the structure.

Installing the Lineset at the Compressor Section

Braze the line set to the service valve stubs as shown in Figure

10.On installations with long line sets, copper adapters may be needed to connect the larger diameter tube to the stubs. Nitrogen should be circulated through the system at 2-3 psi [13.8-20.7 kPa] to prevent oxidation contamination. Use a low silver phos-copper braze alloy on all brazed connections.

Compressor section is shipped with a factory charge. Therefore, service valves should not be opened until the line set has been leak tested, purged and evacuated. See “Charging the System.”

Installing the Indoor Coil and Lineset

 

Factory†

Basic*

20 Feet [6 meters]

40 Feet [12 meters]

60 Feet [18 meters]

Model

Charge (oz)

Charge (oz)

 

 

 

 

 

 

 

Liquid

 

Suction

Liquid

Suction

Liquid

Suction

 

[kg]

[kg]

 

 

 

 

 

HSS Series

 

 

 

 

018

70 [1.98]

55 [1.56]

3/8”

 

3/4”

3/8”

3/4”

3/8”

3/4”

 

 

 

 

 

 

 

 

 

 

024

74 [2.10]

59 [1.67]

3/8”

 

3/4”

3/8”

3/4”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

030

108 [3.06]

93 [2.64]

3/8”

 

3/4”

3/8”

7/8”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

036

117 [3.32]

102 [2.89]

3/8”

 

3/4”

3/8”

7/8”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

042

122 [3.46]

107 [3.03]

3/8”

 

7/8”

3/8”

7/8”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

048

130 [3.69]

115 [3.26]

3/8”

 

7/8”

3/8”

7/8”

1/2”

1-1/8”

 

 

 

 

 

 

 

 

 

 

060

136 [3.86]

121 [3.43]

3/8”

 

1-1/8”

1/2”

1-1/8”

1/2”

1-1/8”

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HTS Series

 

 

 

 

024

90 [2.55]

75 [2.13]

3/8”

 

3/4”

3/8”

3/4”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

036

104 [2.95]

89 [2.52]

3/8”

 

7/8”

3/8”

7/8”

3/8”

7/8”

 

 

 

 

 

 

 

 

 

 

048

126 [3.57]

111 [3.15]

3/8”

 

7/8”

3/8”

7/8”

1/2”

1-1/8”

 

 

 

 

 

 

 

 

 

 

060

168 [4.76]

138 [3.91]

1/2”

 

1-1/8”

1/2”

1-1/8”

1/2”

1-1/8”

•Basic charge includes only the amount required for the condensing unit and the evaporating coil.

An additional amount should be added allowing 0.6oz per ft. for 3/8” [0.6g per cm] and 1.2oz per ft. for 1/2” [1.1g per cm] of lineset used.

†Factory charge is preset for 25’ [7.6 meters] lineset.

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Contents Split Products This page left intentionally blank Model Nomenclature for Indoor Split Series Safety SafetyGeneral Information General Equipment SelectionIndoor Coil Selection HTS GeoMax GeoMax 2 HTS Air Handler Matches for ARI RatingsIndoor Coil Selection For HSS R-22 Units CFMAir Handler Selection Example Removing Existing Condensing Unit Where Applicable InstallationAir Handler Installation Indoor Compressor Section LocationHTS/HSS Installation GROUND-LOOP Heat Pump Applications Piping InstallationGround-Loop Heat Pump Applications Low Water Temperature Cutout Setting CXM ControlFlushing the Earth Loop AntifreezeFluid Volume gal liters per 100’ 30 meters Pipe Approximate Fluid Volume U.S. gal. L per 100 of PipeAntifreeze Percentages by Volume Compressor section must be sealed to prevent entry Expansion Tank and Pump Water Quality Standards Water Control Valve Flow RegulationWater Well Connections Water Coil Low Temperature Limit SettingErosion and Clogging Water Quality StandardsLineset Diameters and Charge Information Refrigeration InstallationLine Set Installation Evacuation and Charging the Unit Add-On Heat Pump ApplicationsRefrigeration Installation Charging The System Evacuation Of The Lineset And CoilDetermining Sub-Cooling Checking Superheat and Subcooling Determining SuperheatExample R-22 refrigerant Hot Water Generator Typical HWG Installation Indoor Compressor SectionHWG Water Piping Water Tank PreparationWater Tank Refill Initial Start-UpHot Water Generator Module Refrigeration Installation HSS Series Electrical Data Electrical Line VoltageGeoMax 2 HTS Series Electrical Data Electrical Power Wiring HWG Wiring Indoor Compressor Section Electrical HWG WiringLow Water Temperature Cutout Selection Thermostat ConnectionsAccessory Connections Electrical Low Voltage WiringTwo-stage HTS Units Taco ValveTwo-Stage HTS Piping Thermostat InstallationCXM Controls Water coil low temperature FP1 The FP1 thermistor Safety Features CXM ControlAir coil low temperature FP2 The FP2 thermistor temperature Diagnostic FeaturesPage Y1, Y2, O Stage 2 cooling CXM Control Start-up OperationVariable Speed PSC Air Handler CXM Thermostat Details Nominal resistance at various temperaturesOperating Limits Unit Starting and Operating ConditionsStarting Conditions Unit OperationUnit and System Checkout Before Powering SYSTEM, please check the followingUnit Start-up Procedure Test Mode Pins Unit Start-Up ProcedureR-22 HSS Compressor Section Coax Water Pressure Drop Water Temperature Change Through Heat ExchangerUnit Operating Conditions GPM 22 HSS Typical Unit Operating Pressures and Temperatures Preventive Maintenance Troubleshooting CXM Process Flow Chart Functional Troubleshooting Functional Troubleshooting Performance Troubleshooting Troubleshooting Form S i d e n t i a l S p l i t 6 0 H z R 2 2 & R 4 1 0 a 08/08
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