Manitowoc J-1300, Service Manual

Page: 23 / 165

Section 2 Installation References
2-12
Remote Condenser/Line Set Installation
Ice Machine
Remote Single
Circuit Condenser
Line Set*
J490 JC0495 RT-20-R404A
J690 JC0895 RT-35-R404A
J890 RT-50-R404A
J1090 JC1095
J1390 JC1395 RL-20-R404A
J1890 JC1895 RL-35-R404A
RL-50-R404A
*Line Set Discharge Line Liquid Line
RT 1/2” (12.7 mm) 5/16” (7.9 mm)
RL 1/2” (12.7 mm) 3/8” (9.5 mm)
Air Temperature Around the Condenser
Minimum Maximum
-20 ° F (-28.9 ° C) 130 ° F (54.4 ° C)
REMOTE ICE MACHINES
REFRIGERANT CHARGE
Each remote ice machines ships from the factory with
a refrigerant charge appropriate for installation with
line sets of up to 50’ (15.25 m). The serial tag on the
ice machine indicates the refrigerant charge.
Additional refrigerant may be required for
installations using line sets between 50’ and 100’
(15.25-30.5 m) long. If additional refrigerant is
required, an additional label located next to the serial
tag states the amount of refrigerant to be added.
Typical Additional Refrigerant Label
If there is no additional label, the nameplate charge is
sufficient for line sets up to 100’ (30.5 m). (See the
chart below.)
Ice
Machine
Nameplate Charge
(Total Charge Shipped in Ice Machine)
Refrigerant to be Added
for 50’-100’ Line Sets
Maximum System Charge
(Never Exceed)
J490 6 lb. (96 oz.) None 6 lb. (96 oz.)
J690 8 lb. (128 oz.) None 8 lb. (128 oz.)
J890 8 lb. (128 oz.) None 8 lb. (128 oz.)
J1090 9.5 lb. (152 oz.) None 9.5 lb. (152 oz.)
J1390 12.5 lb. (200 oz.) 1.5 lb (24 oz) 14 lb. (224 oz.)
J1890 15 lb. (240 oz.) 2.0 lb (32 oz) 17 lb. (272 oz.)
IMPORTANT
EPA CERTIFIED TECHNICIANS
If remote line set length is between 50’ and 100’
(15.25-30.5 m), add
1.5 lb (24 oz) (0.68 kg) of
refrigerant to the nameplate charge.
Tubing length: ____________________________
Refrigerant added to nameplate: ______________
New total refrigerant charge: _________________