Carrier R-410A User Manual download pdf

TP-107D October 2009

Goodman Manufacturing Company, L.P.

1810 Wilson Parkway / Fayetteville, TN 37334

(888) 593-9988

FAX (931) 438-2273

LONG LINE SET APPLICATION R-410A

Only allow qualified, experienced technicians to install or service this unit.

Units must be installed in accordance with Regulations of the National

Fire Protection Association and applicable local codes. Where local

regulations are at a variance with instructions, installer should adhere to

local codes

Before connecting tubing, read the outdoor unit installation manual. Pay

particular attention to all safety precautions.

ATTENTION INSTALLING PERSONNEL

As a professional installer you have an obligation to know the product better than the customer. This includes all safety

precautions and related items.

Prior to actual installation, thoroughly familiarize yourself with these guidelines. Pay special at tention to all safety

warnings posted on the equiment. Often during installation or repair it is possible to place yourse lf in a position which is

more hazardous than when the unit is in operation.

Remember, it is your responsibility to install the pro duct safely and to know it well enough to be able to instruct a

customer in its safe use.

Safety is a matter of common sense...a matter of thinking before acting. Most dealers have a list of specific good safety

practices...follow them.

The precautions listed in this Installation Manual are intended as supplemental to existing practic es. However, if there is

a direct conflict between existing practices and the content of this manual, the precautions listed here take precedence.

This long line set application guideline applies to all AHRI listed R-410A air conditioner and heat

pump split system matches of nominal capacity 18,000 to 60,000 Btuh. This guideline will cover

installation requirements and additional accessories needed for split system installations where

the line set exceeds 80 feet in actual length.

Accessories For Lines Greater Than 80 Feet:

1. Crankcase Heater- a long line set application can critically increase the charge level

needed for a system. As a result, the system is very prone to refrigerant migration during its

off-cycle and a crankcase heater will help minimize this risk. A crankcase heater is required

for any long line application (50 watt minimum).

2. For all line set applications over 80 feet a TXV is recommended. The subcooling should be

6º ± 2º.

3. Hard Start Assist- increased charge level in long line applications can require extra work

from the compressor at start-up. A hard start assist device may be required to overcome

this.

TECHNICAL

PUBLICATION

TP-107

1 2 3 4 5

Summary of Contents

Page 1 - PUBLICATION

TP-107D October 2009 Goodman Manufacturing Company, L.P. 181

Page 2 - Page 2 of 5

TP-107D Page 2 of 5 4. Liquid Line Solenoid - a long line set application can critically increase the charge level needed for a system. As a resul

Page 3 - Installation Requirements

TP-107D Page 3 of 5 Table 2 below lists multiplier values to recalculate system-cooling capacity as a function of a system’s equivalent line length

Page 4

TP-107D Page 4 of 5 the evaporator. This helps reduce refrigerant migration to the condenser during a system’s off-cycle. 2. For a system installa

Page 5 - Page 5 of 5

TP-107D Page 5 of 5 Remember, 3/8” liquid tubing is required for all long line set applications. Heat pumps should be checked in both heating and c

Carrier R-410A User Manual

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Carrier R-410A User Manual

Browse online or download User Manual for Split-system air conditioners Carrier R-410A. LONG LINE SET APPLICATION R-410A [en]

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