Carrier Infinity 25VNA Installation Instructions Manual page 5

Table 1 – Refrigerant Connections and Recommended Liquid and Vapor Tube Diameters (in.)
UNIT SIZE
25VNA024
25VNA036
25VNA048
25VNA060
* Units are rated with 25 ft. (7.6 m) of lineset. See Product Data sheet for performance data when using different size and length line sets.
Notes:
1. Do not apply capillary tube indoor coils to these units.
2. For Tubing Set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal and / or greater than 20 ft. (6.1 m) vertical differential, an accessory Liquid Line
Solenoid must be installed.
ACCESSORY
Crankcase Heater
Evaporator Freeze Protection
Liquid --- Line Solenoid Valve
Low--- Ambient Control
Puron Refrigerant Balance Port
Hard --- ShutOff TXV
Support Feet
Winter Start Control
EMI Kit
* 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), an accessory
Liquid Line Solenoid must be installed.
{ Required on all indoor units. Standard on all new Puron refrigerant fan coils and furnace coils.
Standard = Standard for all new Puron refrigerant fan coils and furnace coils.
LIQUID
Connection Tube
Diameter Diameter
3/8 3/8
3/8 3/8
3/8 3/8
3/8 3/8
Table 2 – Accessory Usage
REQUIRED FOR
LOW --- AMBIENT COOLING
APPLICATIONS
(Below 55F/12.8_C)
Standard
Standard with Infinityt Control
No
Standard with Infinity Control
Yes {
Recommended
Standard with Infinity
Control
No
Connection
Diameter
7/8
7/8
7/8
7/8
REQUIRED FOR LONG LINE
APPLICATIONS* COAST APPLICATIONS
(Over 80 ft/24.38 m) (Within 2 miles/3.22 km)
Standard
No
Yes
No
Yes{
No
Standard with Infinity
Control
No
5
VAPOR*
Max (Rated) Minimum Tube
Diameter
7/8
7/8
1--- 1/8
1--- 1/8
Installations with Radio
REQUIRED FOR SEA
Frequency Interference
Concerns in the Range
of 2 to 30 MHZ
Standard Standard
No
No
No
Yes {
Recommended
Standard with Infinity Standard with Infinity
Control
No
Diameter
5/8
5/8
3/4
3/4
No
No
No
Yes {
No
Control
Yes