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Section 6Refrigeration System

6-22

Charging R-402B (HP81)

Using Charging Cylinders

1. Charge the cylinder with R-402B (HP81).

2. Read the pressure indicated on the

charging cylinder gauge.

3. Using the R-502 scale, rotate the charging

cylinder to the pressure listed below.

Pressure Reading

on the Gauge

Rotate Dial

to R-502 Scale

75-81 110

82-90 120

91-100 130

101-109 140

110-119 150

120-129 160

130-138 170

139-148 180

149-159 190

160-169 200

170-179 210

180-190 220

191-200 230

201-211 240

212-220 250

Refrigerant Definitions

RECOVER

To remove refrigerant, in any condition, from

a system and store it in an external container,

without necessarily testing or processing it in

any way.

RECYCLE

To clean refrigerant for re-use by oil

separation and single or multiple passes

through devices, such as replaceable core

filter-driers, which reduce moisture, acidity

and particulate matter. This term usually

applies to procedures implemented at the field

job site or at a local service shop.

RECLAIM

To reprocess refrigerant to new product

specifications (see below) by means which

may include distillation. A chemical analysis

of the refrigerant is required after processing

to be sure that product specifications are met.

This term usually implies the use of processes

and procedures available only at a

reprocessing or manufacturing facility.

Chemical analysis is the key requirement in

this definition. Regardless of the purity levels

reached by a reprocessing method, refrigerant

is not considered “reclaimed” unless it has

been chemically analyzed and meets ARI

Standard 700 (latest edition).

NEW PRODUCT SPECIFICATIONS

This means ARI Standard 700 (latest edition).

Chemical analysis is required to assure that

this standard is met.

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