Carrier 25HNA6 - Refrigerant Connections; Recommended Liquid and Vapor Tube Diameters; Accessory Usage

Table1 - Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.)
Information is Specific to 25HNA6 and 25HNA9 Models
UNIT SIZE
25HNA624
25HNA636
25HNA648
25HNA660
RATED VAPOR*
Tube
Diameter
5/8
3/4
7/8
1- 1/8
Connection
Diameter
3/8
3/8
3/8
3/8
LIQUID
Tube
Diameter
3/8
3/8
3/8
3/8
Connection
Diameter
5/8
3/4
7/8
7/8
3/4
3/4
7/8
1- 1/8
Tube diameters are for total equivalent lengths (T.E.L.) up to 80 ft. (24.38 m) Consult the Long Line Guideline--Air Conditioners and Heat Pumps using
Puron¢_ refrigerant.
Do not apply capillary tube or the fixed orifice indoor coils to these units.
For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (250 ff./76.2 m Total Equivalent Length),
refer to the Longline Guideline- Air Conditioners and Heat Pumps using Puron ® Refrigerant.
25HNA924 3/8 3/8 3/4
25HNA936 3/8 3/8 3/4
25HNA948 3/8 3/8 7/8
25HNA960 3/8 3/8 7/8
Units are rated with 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size and length linesets.
Notes:
1.
2.
3
Table 2 - Accessory Usage
REQUIRED FOR
REQUIRED FOR LONG LINE REQUIRED FOR SEA
LOW-AMBIENT COOLING
ACCESSORY APPLICATIONS* COAST APPLICATIONS
APPLICATIONS
(Over 80 ft/24.38 m) (Within 2 miles/3.22 km)
(Below 55°F/12.8 ° C)
Crankcase Heater Standard Standard Standard
Standard with Infinity" Control
Evaporator Freeze Protection (Low Ambient not allowed with non- No No
communicating thermostat)
Standard with Infinity Control
Winter Start Control (Low Ambient not allowed with non- No No
communicating thermostat)
Standard on 25HNA6 models. Standard on 25HNA6 models. Standard on 25HNA6
models.
Compressor Start Assist Capacitor Not required on 25HNA9 models Not required on 25HNA9 models
Not required on 25HNA9
and Relay:[: since compressor always starts since compressor always starts models since compressor
unloaded, unloaded, always starts unloaded.
Standard with Infinity Control (Low
Low-Ambient Control ambient not allowed with non-commu- No No
nicating thermostat)
Support Feet Recommended No Recommended
Liquid- Line Solenoid Valve No Yes No
Puron Refrigerant Balance Port
Yest Yest Yest
Hard- ShutOff TXV
For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent length), refer to the Long
Line Guideline--Air Conditioners and Heat Pumps using Purcn® Refl'igerant.
1- Required on all indoor units. Standard on all new Purcn refrigerant fan coils and furnace coils.
$ Information is specific to 25HNA6 and 25HNA9 models.
Pu ron
the environmenta ly sould r eldge_ant
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Un_r_ _e_t Pumps
ISO 9001:2000 A
C US
__kThinks. Heats. Saves.
Ready for use in a Hybrid Heat ® Duel Fuel system.
meet Energy Star@ criteria for energy efficiency when
matched with appropriate coil components. However,
proper refrigerant charge and proper air flow are critical
to achieve rated capacity and efficiency. Installation of
this product should follow all manufacturing refrigerant
charging and air flow instructions. Failure to confirm
proper charge and air flow may reduce energy
efficiency and shorten equipment life.