Calculating Installation Distances - Manitowoc Indigo NXT Series Installation, Operation And Maintenance Manual

Installation
Remote Condenser Models
Ice Remote
Machine Condenser
IF0500N JCF0500
IT0500N JCT0500
IF0600N JCF0900
IF0900N JCF0900
IT1200N JCT1200
IT1500N JCT1500
IT1900N JCT1500
Discharge
Line Set
Line
RT
1/2 inch
20/35/50
(13 mm)
R404A
RT
1/2 inch
20/35/50
(13 mm)
R410A
RL
1/2 inch
20/35/50
(13 mm)
R410A
NOTE: R404A line sets have white
protective caps and R410A line sets have
pink protective caps.
n
Potential Personal Injury Situation
The ice machine head section contains
the refrigerant charge. Installation and
brazing of the line sets must be performed
by a properly trained and EPA certified
refrigeration technician aware of the
dangers of dealing with refrigerant charged
equipment.
26
Additional Amount
of Refrigerant
to Be Added to
Nameplate Charge
for 50' to 100'
(15 to 30 Meter)
Line Sets
1.5 lbs - 680 g
1.5 lbs - 680 g
1.5 lbs - 680 g
2 lbs - 907 g
2 lbs - 907 g
2 lbs - 907 g
2 lbs - 907 g
Liquid
Model
Line
IF0500N
5/16 inch
IF0600N
(7.9 mm)
IF0900N
5/16 inch IT0500N
(7.9 mm) IT1200N
3/8 inch IT1500N
(9.5 mm) IT1900N
Warning

CALCULATING INSTALLATION DISTANCES

Line Set Length
The maximum tubing length is 100 feet (30
meters).
Line Set Rise/Drop
The maximum rise is 35 feet (10.7 meters).
The maximum drop is 15 feet (4.5 meters).


Notice
If a line set has a rise followed by a drop,
another rise cannot be made. Likewise,
if a line set has a drop followed by a rise,
another drop cannot be made.
Calculated Line Set Distance
The maximum calculated distance is 150
feet (45 meters).
Line set rises, drops, horizontal runs (or
combinations of these) in excess of the
stated maximums will exceed compressor
start-up and design limits. This will cause
poor oil return to the compressor. Make the
following calculations to make sure the line
set layout is within specifications.
1. Insert the measured rise into the
formula below. Multiply by 1.7 to get
the calculated rise.
Insert the measured drop into the
2.
formula below. Multiply by 6.6 to get
the calculated drop.
3. Insert the measured horizontal
distance into the formula below. No
calculation is necessary.
Part Number 000014141 Rev 07 2/20
Section 2