Rheem P17 Series User Manual

12
Tubing
4.0 INSTALLATION
4.4.2.5 Oil Level Adjustment for
Long Line Set Applications
Additional oil will need to be added if refrigerant is
added during installation. Below is the equation for
the oil level adjustment and the compressor name
plate oil charge for the different outdoor units.
Oil to be Added = [(Charge Adjustment + OD
Unit Name Plate Refrigerant Charge (oz.)) ×
(0.022) – [(0.10) × (Compressor Name Plate Oil
Charge (oz.))]
Example: An application requires 125ft of line set
with a liquid line diameter of 3/8”, Charge Adjust-
ment = 66 oz., Name Plate Charge = 212 oz.,
Name Plate Oil Charge = 40 oz., Oil to be Added =
((66 oz. + 212 oz.) × .022) – (.10 × 40 oz.) = 2 oz.
4.4.2.6 Capacity Losses
Long line lengths can result in a reduction in capac-
ity due to vapor line pressure drop and heat gain or
loss. Refer to Table 2 for capacity loss multipliers
for various vapor line diameters and equipment line
lengths. This table does not account for any capac-
ity loss due to heat gain or loss from the environ-
ment. It is extremely important not to oversize the
vapor line to minimize capacity loss at the expense
of proper oil return. If the table shows an “NR” for
a particular vapor line diameter and length, or, if a
vapor line diameter is not listed, oil return will not be
adequate.
OD Model
Compressor
Nameplate Oil
Charge (oz)
(-)P1724
ZPV0212E-ZE9-130 40
(-)P1736
ZPV0342E-ZE9-130 40
(-)P1748
(-)P1760
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ϭͲϭϴ΀Ϯϴϱϴ΁ Ϯϳ΀ϬϴϮ΁ ϭϴ΀Ϭϱϱ΁ Ϭϵ΀ϬϮϳ΁ ϮϮ΀ϲϳϭ΁ ϭϮ΀ϯϲϲ΁ ϭϱ΀Ϭϰϲ΁ ϲ΀ϭϴϯ΁
Table 1
Refrigerant tubing is measured in terms of actual
length and equivalent length. Actual length is used
for refrigerant charge applications. Equivalent
length takes into account pressure losses from tub-
ing length, ttings, vertical separation, accessories,
and lter driers. The table below references differ-
ent commonly used equivalent lengths.
4.4.3 Line Set Length and Fitting Losses

Rheem P17 Series Specifications

General

Brand	Rheem
Model	P17 Series
Category	Heat Pump
Language	English