6
Table 2 — Physical Data — 19XR Pumpout Unit
*The pumpout unit weight includes the compressor/condenser, control
box, and the oil separator.
NOTES:
1. The motor is hermetic with thermal protection.
2. The control box is mounted and wired with an ON/OFF/AUTO.
switch according to NEMA 1 (National Electrical Manufacturing
Association).
3. The starter contactor is located in the control box. The overloads
on the motor are wired and the internal disconnect switch is sup-
plied by the customer.
Table 3 — 19XR Storage Tank Rated Dry Weight and R-513A Refrigerant Capacity
LEGEND
*The above dry weight includes the pumpout unit weight of 164 lb
(75 kg).
Step 4 — Make Piping Connections
Figure 5 represents typical pumpout unit/chiller piping connec-
tions. Standard connections for 1/2 in. OD copper tubing are pro-
vided. Install the field-supplied FPT tee with pipe plug in the pip-
ing as shown in Fig. 5. This tee is used for refrigerant charging.
NOTE: If any field piping runs exceed 50 ft in length, use 7/8 in.
OD copper tubing to minimize pressure drop.
Pumpout unit water piping connections are shown in Fig. 5. Both
connections are 3/4 in. NPT (female). A shutoff valve should be
installed in the water line. Provide a means for blowing water
from the condenser coil at winter shutdown to prevent freeze-up
damage. Refer to the Job Data for water piping particulars.
INSTALL VENT PIPING TO RELIEF DEVICES
The pumpout storage tank is factory-equipped with relief devices.
Refer to Fig. 6 and Table 4 for size and location of the relief devic-
es. Vent the relief devices to the outdoors in accordance with
ANSI/ASHRAE 15 Safety Code (latest edition) for Mechanical
Refrigeration and all other applicable codes. Pumpout unit relief
devices are set to relieve at 235 psig (1620 kPa). Storage tank re-
lief devices are set to relieve at 185 psig (1276 kPa).
1. If relief devices are manifolded, the cross-sectional area of
the relief pipe must at least equal the sum of the areas
required for individual relief pipes.
2. Provide a pipe plug near outlet side of each relief device for
leak testing. Provide pipe fittings that allow vent piping to be
disconnected periodically for inspection of valve mechanism.
3. Piping to relief devices must not apply stress to the
device. Adequately support piping. A length of flexible tub-
ing or piping near the device is essential on spring-isolated
machines.
4. Cover the outdoor vent with a rain cap and place a condensa-
tion drain at the low point in the vent piping to prevent water
build-up on the atmospheric side of the relief device.
Step 5 —
Make Electrical Connections
See nameplate on compressor of pumpout unit and Table 1 for
motor electrical data. Wire unit according to the diagram inside
the control box.
Figure 7 is the wiring schematic for a complete system that in-
cludes the 19XR storage tank and the pumpout unit. Figure 8 is the
wiring schematic for the pumpout unit. Use this schematic for in-
stallations that do not include an auxiliary pumpout storage tank.
NOTE: Use copper conductors only.
ENGLISH SI
Pumpout Unit Weight* lb (kg) 164 (75)
Pumpout Condenser Water Flow Rate gpm (L/s) 7-9 (.45-.58)
Pumpout Condenser Water Pressure Drop psig (kPa) 0.3 (2.0)
Maximum Entering Condenser Water Temperature F (C) 85 (29)
Maximum Leaving Condenser Water Temperature F (C) 100 (37)
Relief Valve psig (kPa) 235 (1620)
Condenser Pressure Rating
Refrigerant Side psig (kPa) 450 (3102)
Waterside psig (kPa) 450 (3102)
SIZE
cu ft (cu m)
TANK OD
in. (mm)
DRY WEIGHT*
lb (kg)
MAXIMUM REFRIGERANT CAPACITY LB (KG)
ASHRAE/ANSI 15 UL 1963
R-513A R-513A
28 (0.8) 24.00 (610) 2334 (1059) 1860 (844) 1716 (778)
52 (1.5) 27.25 (692) 3414 (1549) 3563 (1616) 3286 (1491)
ANSI — American National Standards Institute
ASHRAE — American Society of Heating, Refrigeration,
and Air-Conditioning Engineers
UL — Underwriters’ Laboratories
DANGER
Refrigerant discharged into confined spaces can displace oxy-
gen and cause asphyxiation.
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