Piping and Filling with Refrigerant: R-134a and R-407c Circuits
24
Figure 24 Installation data—Lee-Temp, one-circuit, four-fan modelField-supplied main disconnect switch in
accordance with local codes or main unit
switch ordered as optional equipment
factory-installed in condenser control box.
* Liquid line from
condenser (Circuit 1)
See
Note 14
See
Note 12 * Hot Gas Line
From Unit
(Circuit 1)
See Note 14
Note 14
Electrical service
by others
Hot Gas Line (Circuit 1)
Liquid Line (Circuit 1) See Note 14
Ensure piping stays below electrical
box and does not protrude
Metal
Clamp
Isolator
Mounting Instructions
1. Uncrate carton and inspect for damage to
condenser and condenser control panel.
2.Assemble legs per instructions as shown.
3. Double risers are required when hot gas
vertical rise is 15 feet (4.6 m) or more
(see 2.6 Install Double Discharge Risers).
4. Wire according to electrical diagram on inside
of condenser control box and in accordance with
all local codes.
5.All condenser locations more than 200ft. (61m) of
equivalent piping length away from Liebert XDC
must consult factory for special piping considerations.
6. Field to size refrigerant lines so as not to exceed
2°F (1.1°C) saturation loss for total equivalent length
(do not use connection sizes to determine line sizes).
7. Condenser installation is limited to a maximum of
15ft. (4.6m) location below Liebert XDC unit.
8. Do not run piping or wiring in the path of air flow
because this will reduce system performance.
9. Install field-supplied inverted traps on hot
gas lines between condenser and field piping.
10.All other piping field-supplied and field-connected.
11. Inverted traps must be installed to allow proper
clearance to fully open condenser control box door
and in accordance with local electric codes.
12. Secure Lee-Temp receiver assembly and each leg to
condenser frame using hardware provided. Receiver
can be mounted on either side of the condenser.
13. Lee-Temp Item B is shipped as a pre-piped
assembly shipped loose for field installation.
Item C is shipped loose for field installation.
14. Fasten liquid and hot gas lines using flat surface
clamps with isolators (field-provided). Support
field piping separately to avoid coil damage and
loss of charge
15. Relieve pressure at access port. Replace access port
fitting with relief valve before charging system.
1 Built-in condenser control box. See electrical drawing
for details and field wiring.
2 Air-cooled condenser.
3 Piping access cover to be reinstalled when piping is completed
.
4 Bolts - (4 per leg) 3/8" (9. 5mm) - (16) sixteen 5/8" (15.9mm)
5 Terminal block for two-wire, 24V interlock connection between
Liebert XDC and Liebert condenser.
6 Condenser legs - (8) eight legs for (4) four-fan models.
7 Lee-temp:
a. Insulated storage receiver - storage
receiver (1) per circuit. 5-foot-long receiver
is standard.
b. Dual head pressure control valve assembly
with integral check valve(s) - (1) one per circuit (See Note 13)
c. Rotalock valve - (1) one per circuit
d. Pressure relief valve - (1) one per circuit, field-installed.
e. Liquid level indicator - (1) per circuit, factory-installed
on receiver
8 Bolts - Lee-Temp 3/8" (9. 5mm)
MATERIALS SUPPLIED
BY EMERSON NETWORK POWER
4
6
Lee-Temp heater
pad electric box
this end (See Page 3)
* Hot Gas Line to
Condenser (Circuit 1)
AD
Position elbow to direct
relief valve downward
Liquid Return
Line to Unit
(Circuit 1)
DPN000937
Pg. 01, Rev. 09