Manufacturer reserves the right
to discontinue, or change at any
time, specifications or designs
without notice and without
incurring obligations.
Carlyle Compressor Co • © Carrier Corporation 07/02
P.O. Box 4808, Syracuse, NY 13221
Phone: In US & Mexico 1-800-GO-CARLYLE
In Canada & Puerto Rico 1-800-258-1123
www.carlylecompressor.com
Lit. No. 574-067
06DA603632 Rev C
2. Connect (2) power leads (from L1 and L3) to the #3 terminal
location of the overloads as shown in Fig. 1. Connections are
made using push-on quick connect flag terminal or ring terminals
based on model and voltage. Be sure that power leads with the
quick connect flag terminals are securely and firmly fastened to
the overload terminal tabs.
*Models 06DR337/DM337/DA328 for 208/230 V are supplied with
3 overloads.
3. When attaching power leads to the overloads requiring the ring
terminals as noted above, use the hardware in the parts bag sup-
plied with the compressor and located inside the terminal box.
Use (1) screw, and (1) external-tooth lockwasher per connection.
Assemble the parts in the order as shown in Fig. 6.
Fig. 6 - Torque Terminal Screws to 20 Lb-In
(2.3 N-m) Maximum
TERMINAL PLATE WIRING
1. Customer wiring to the terminal plate must be provided with
ring terminals to accommodate the 1/4’’-28 terminal studs.
2. With screwdriver, remove the extended slotted terminal nut and
star washer only on terminal studs #2 and #9. On compressors
with 3 overloads, the power lead wire to terminal #2 is factory
connected.
3. Apply control circuit lead wire to terminal stud #9 and power
lead from L2 to terminal stud #2. Reassemble star washers and
extended slotted terminal nuts.
4. Tighten extended terminal nuts to 30 lb-in (3.4 N-m)
maximum.
OIL PRESSURE SAFETY SWITCH
1. All Carlyle 06D compressors are provided with connections
for an oil safety switch. The use of an oil safety switch can help
prevent compressor failures when loss of lubrication or loss of
compressor oil charge occurs. The use of an oil safety switch is
required as a condition of warranty for those 06D compressors
which are applied on systems in which two or more 06D com-
pressors are connected in parallel. On units in which single 06D
compressors are applied, the use of an oil pressure switch is
recommended. See Figs. 2-5 for oil safety switch connections.
2. Normal oil pressure for 06D compressors is 12 to 30 psi
(.83 - 2.1 bar) above suction pressure. Select a switch to close
the control circuit (at start-up) at a maximum of 12 psi (.83 bar)
and open the control circuit at a minimum of 5 psi (.35 bar). A
time delay of not less than 30 seconds nor more than 60 seconds
is required for start-up purposes. The switch must also be manu-
ally reset when it trips.
3. The following oil safety switches have been approved by
Carlyle:
MOTOR PROTECTION
All 06D compressors are supplied with overcurrent and
overtemperature device
COOLING FANS
Cylinder head cooling fans are recommended for saturated suc-
tion temperature (SST) below 0°F (-18°C) and are required based
on SST as follows:
Fig. 7 - Section thru Terminal Plate
tnaregirfeRTSS
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A404/705-R52- ¡ 23-(F ¡ )C
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