Installing, starting up, and servicing air-conditioning equip
ment can be hazardous due to system pressures, electrical
components, and equipment location (roofs, elevated struc
tures, etc.).
Only trained, qualified installers and service mechanics
should install, start up, and service this equipment (Fig. 1).
Untrained personnel can perform basic maintenance func
tions such as cleaning coils. All other operations should be
performed by trained service personnel.
...........1
........
1-31
1
4
31
32
32
32
32 ,
09DK054-094
Air-Cooled Condenser Units
50/60 Hz
Fig. 1 — Model 09DK (084 Shown)
When working on the equipment, observe precautions in
the literature and on tags, stickers, and labels attached to
the equipment.
Follow all safety codes. Wear safety glasses and work
gloves. Keep quenching cloth and fire extinguisher nearby
when brazing. Use care in handling, rigging and setting bulky
equipment.
See Tables lA and IB for Physical Data.
ELECTRIC SHOCK HAZARD
Separate power sources (main and control
power circuits) are used for these units. Be
sure both main and control power circuits
are disconnected before servicing.
INSTALLATION
Step 1 — Complete Pre-Installation Checks —
Examine for damage incurred during shipment. File claim
immediately with transit company if damage is found. Check
the shipment for completeness. Verify that the nameplate
electrical requirements match the available power supply
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obiigations.
Book 12 PC 111 Catalog No 530-959 Printed in U S A. Form 09DK-9SI Pg 1 2-94 Replaces: 09DK-4SI
Tab 4a
Table IA — Physical Data 60 Hz
09DK
NOMINAL TONS
OPERATING WEIGHT-lb
Cu-AI*
Cu-Cut
SHIPPING WEIGHT-lb“
Cu-AI*
Cu-Cut
REFRIGERANTS
NOMINAL HEAT REJECTION
(TONS)tt
CONDENSER FANS
No. of Blades
No. of Fans
Fan DIameter-ln.
AIrflow-cfm
Fan Speed-rpm1140
Fan Motor-hp
CONDENSER COILS
Quantity
Fins/ln.
No. of Rows
Total Face Area (sq ft)
TD - Temperature Difference = Saturated Condensing Temperature - Entering-Air Temperature
‘Copper tubes and aluminum fins
tCopper tubes and copper fins.
“Packaging option includes skid and coil protection.
ttNominal heat rejection based on refrigerant R-22, 15“ F subcooling, and a 30“ F temperature difference (TD).
054
50
1695
19832278
2010
22982569
65.8
4
4
30
35,000
1
4
17
2
80.5
English
064
60
1845
2136252127254415
R-134A, R-22, R-12, R-500, R-502
78 695 4103 5
44
466
303030
35,00052,00051,000
114011401140
1
4
17
323
80 5116.7116.7
074
70
2200
26173099
293834035150
11
44
1717
084
80
2421
4
094
90
2850
3560
1163
4
6
30
57,000
1140
1
4
17
3
128.3
SI
09DK
NOMINAL kW
OPERATING WEIGHT-kg
Cu-AI*
Cu-Cut
SHIPPING WEIGHT-kg**
Cu-AI*
Cu-Cut
REFRIGERANTS
NOMINAL HEAT REJECTION
(kW)tt
CONDENSER FANS
No. of Blades
No. of Fans
Fan DIameter-mm
AIrflow-L/s
Fan Speed-r/s
Fan Motor-kW
CONDENSER COILS
Quantity
FIns/m669
No. of Rows
Total Face Area (sq m)
TD — Temperature Difference = Saturated Condensing Temperature - Entering-Air Temperature
‘Copper tubes and aluminum fins.
TCopper tubes and copper fins.
“Packaging option includes skid and coil protection.
ttNominal heat rejection based on refrigerant R-22, 8.3“ C subcooling, and a 16.7“ C temperature difference (TD)
No. Of Blades
No. of Fans
Fan Diameter-mm762762762762
Airflow-L/s
Fan Speed-r/s
Fan Motor-kW0.7460.7460.746
CONDENSER COILS
Quantity
Fins/m
No. of Rows
Total Face Area (sq m)
TD — Temperature Difference = Saturated Condensing Temperature - Entering-Air Temperature
‘Copper tubes and aluminum fins.
tCopper tubes and copper fins.
"Packaging option includes skid and coil protection.
ttNominal heat rejection based on refrigerant R-22, 8.3° C subcooling, and a 16.7° C temperature difference (TD).
76983799810981293
900
912
1042
231276335364
666
446
16 520
15.8
444
669
2
7.57.510 8410 8411.92
211
1033
969
11651333
R-134A, R-22, R-12, R-500 R-502
16 520
158
669669669
3
246281
118714061615
1144
24 540
15.8
2
24 070
316
1236
15442336
6
6
158
0.746
4
33
2003
409
6
6
762
26 900
15.8
0.746
4
669
Step 2 — Rig and Place Unit
RIGGING - The 09DK units are designed for overhead
rigging and this method should be used Lifting holes are
provided in the frame base rails, which are marked for rig
ging (see rigging label on the unit). It is recommended that
field supplied pipes of sufficient length that extend beyond
the frame are passed through the holes. Attach cables, chains,
or straps to both ends of the pipes. Use spreader bars or a
frame to keep the cables, chains, or straps clear of the unit
sides. All cables should run to a central suspension point
so that the angle from the horizontal is not less than
45 degrees. See Fig. 2-4 and Tables lA and IB for weight
distribution information. Standard coil protection packag
ing provides some protection to the unit. Raise and set the
unit down carefully.
Domestic Units With No Overhead Rigging— Standard con
denser packaging consists of coil protection only. Skids are
not provided as part of the standard packaging. If overhead
rigging is not available at the jobsite, place the unit on a
skid or pad by using jacks at the rigging points before drag
ging or rolling. When rolling, use a minimum of 3 rollers.
When dragging, pull the pad or skid.
Do not apply pressure
to the unit. Raise from above to lift off the pad or skid
when in final position. See rigging section above for more
information.
Export and Domestic Units With Skids— All export units
are mounted on skids with vertical coil protection. Leave
the unit on the skid until it is in the final position. While on
the skid, the unit can be rolled, dragged or forklifted; donot apply force to the unit. Use a minimum of 3 rollers
when rolling, and raise from above to remove the skid when
unit is in the final position. See preceding rigging proce
dure for more information.
A CAUTION
To avoid damage to units, do not forklift them unless
they are attached to skids designed for forklifting. Fork
lift trucks used to lift units on skids must have forks a
minimum of 60 in. (1524 mm) long.
Step 3 — Complete Refrigerant Piping
GENERAL — All field leak and pressure testing should be
in accordance with local code requirements. If a local code
does not exist, use ASHRAE (American Society of Heat
ing, Refrigeration and Air Conditioning Engineers) Stand
ard 15, Safety Code for Mechanical Refrigeration.
For leak testing procedures, refer to the Carrier
“Refrigerant Service Techniques” book. Form SM-IA
For any parts that need to be removed, use a mini tubing
cutter. Perform phos-copper brazing on all field-made con
nections while protecting adjacent joints from heat.
Install or replace filter-drier(s).
COIL REFRIGERANT PIPING INSTALLATION - Hot
gas and liquid connections are located on the same end and
have a heat-shrunk cap, which ensures a clean joint for field
piping. The coil circuiting is designed to provide several
selections of coil splits to satisfy various applications (See
Table 2), with piping connections made in the field. In all
cases where circuits are field connected, the piping connec
tions should be made within the unit cabinet The hot gas
lines should enter and the liquid lines should leave the con
denser at the header end of the unit.
A tubing package for headering, including two fan cycle
pressure switches (FCPSs) and hardware, is provided for
the 100, 50/50, and nominal 67/33% (054-084 only) con
denser coil circuiting options. The tubing also provides
ports for easy FCPS installations. The ports come with a
1/4-in. male flare fitting and check valve for each FCPS
replacement. Tubing and FCPSs are field installed regard
less of circuiting. Tubing packages are not offered for the
33/33/33% and 33/33/17/17% coil circuiting options; tub
ing for these coil circuit options must be field fabricated
and installed. See Fig. 5-7 for tubing package contents
NOTE. 67/33, 33/33/33 and 33/33/17/17% represent aver
age coil split combinations. Refer to sections below for ac
tual values for your particular coil split combination. Note
that 09DK094 units can only have 100% or 50/50% splits.
PLACING THE UNIT — Locate the condenser where an
adequate supply of outdoor air is available for the unit in
let. Do not locate where the possibility of air recirculation
exists, such as under a roof overhang. Also, locate the con
denser in an area free from airborne dirt or other foreign
material which could clog the condenser coils. Refer to
Fig. 2-4 for airflow clearances For multiple units, allow
8 ft (2440 mm) separation between units for airflow and
service. Placement area must be level and strong enough
to support operating weight of the unit (Fig. 2-4 and
Tables lA and IB). It is recommended to bolt unit securely
to pad when unit is positioned and leveled. Fasteners for
mounting unit are field supplied. If vibration isolators are
required for a particular installation, refer to the unit weight
distribution data tables in Fig. 2-4 to help select the proper
isolators.
17/17% capacity split options, 3 or 4 FCPSs are used
For these applications, an accessory fan control kit is
required. See accessory installation instmctions for more
information.
Figure 8 shows a typical piping application for a condenser
with a multiple-split system. Figure 9 shows the typical field
piping arrangements for the 09DK units. See Fig. 10 and
11 for coil connection details. Figures 12 and 13 show typ-
*,ical factory supplied coil circuiting and typical field in
2. Unit must have clearances for airflow as follows:
Top — Do not restrict in any way.
________
----------------
► 1695 lb [769 kg]
>■ 1845 lb [837 kg]
Ends — 5 ft [1524 mm]
Sides — 6 ft [1829 mm]
3. All units are shipped with a capacity split tubing kit. This kit may be used by
the field to obtain 100%, 50%/50% and 67%/33% capacity splits. To obtain
a 33%/33%/33% capacity split, coils must be manifolded by the field. Coils
are factory circuited for a 33%/33%/17%/17% capacity split.
UNIT
09DK-054—
09DK-054-C
09DK-064—
09DK-064-C
DIMENSION
YX
3'-6 11/16"
[1084 mm]
3'-6 7/8"
[1090 mm]
3'-6 3/4"
[1087 mm]
3'-7 1/8"
[1095 mm]
DIMENSION
4'-1/8"
[1222 mm]
4'-5/16"
[1227 mm]
4'-3/16"
[1224 mm]
4'-1/2"
[1232 mm]
OPERATING CORNER WEIGHTS
AВC
452 lb
[205 kg]
524 lb
[238 kg]
489 lb
[222 kg]
598 lb
[271 kg]
425 lb
[193 kg]
497 lb
[225 kg]
462 lb
[210 kg]
571 Ib
[259 kg]
396 Ib
[180 kg]
468 Ib
[212 kg]
434 Ib
[197 kg]
542 Ib
[246 kg]
CONTROL BOX
END
D
422 Ib
[191 kg]
494 Ib
[224 kg]
459 Ib
[208 kg]
568 Ib
[258 kg]
CAPACITY SPLIT
1 00У.
50%/50%
67%/33%
33%/33%/33%
ЗЗУ ./ЗЗ У./17%/17 %
TYPEN0.5
HOT GAS1,3,5.7
LIQUID2,4,5,8
HOT GAS
LIQUID
HOT GAS
LIQUID2.4,687/8 I.D.
HOT GAS
LIQUID
HOT GAS1 7
LIQUID
CONNECTIONS
5,7
1,3
2,4
6,87/8 I.D.
1,3,5
17
284.67/8 I.D.
3 5 1 1/8' I.D.
4
2 8
SIZE
1 1/8' I.D.
7/6 I.D.
1 1/8' I.D.
7
1 1/8' I.D.
3,5 1 1/8' I.D.
67/8 I.D.
Fig. 2 — Dimensions; 054 and 064 Units
7'-4 1/2"-
C2247miil
BASE OVERALL
NOTES:
1. The approximate operating weight of the unit is;
09DK-074—
09DK-074-C
09DK-084
09DK-084-C
2. Unit must have clearances for airflow as follows:
Top — Do not restrict in any way.
Ends — 5 ft [1524 mm]
Sides — 6 ft [1829 mm]
3. All units are shipped with a capacity split tubing kit. This kit may be used by
the field to obtain 100%, 50%/50% and 67%/33% capacity splits. To obtain
a 33%/33%/33% capacity split, coils must be manifolded by the field. Coils
are factory circuited for a 33%/33%/17%/17% capacity split.
1. The approximate operating weight of the unit is:
09DK-094
----------------
09DK-094-C
2. Unit must have clearances for airflow as follows:
Top — Do not restrict in any way.
Ends — 5 ft [1524 mm]
Sides — 6 ft [1829 mm]
3. Mounting holes may be used to mount unit to concrete pad. They are not
recommended for mounting unit to spring isolators. If spring isolators are
used, a perimeter support channel between the unit and the isolators is
recommended.
-------------
». 2850 lb [1294 kg]
»3560 lb [1615 kg]
CONTROL
END
BOX
HEADER END
UNIT
09DK-094—
09DK-094-C
DIMENSION
YX
5’-2 7/8"
[1597 mm]
5'-2 7/8"
[1597 mm]
DIMENSION
3'-9 3/16"
[1148 mm]
3'-9 3/16"
[1148 mm]
OPERATING CORNER WEIGHTS
A
769 lb
[349 kg]
960 lb
[436 kg]
BC
676 lb
[307 kg]
845 lb
[383 kg]
658 lb
[299 kg]
821 lb
[372 kg]
[339 kg]
[424 kg]
D
747 lb
934 lb
TUBING PACKAGE INSTALLATION - Before install
ing, inspect the package contents. If any parts are missing
or damaged, file a claim with the shipping company and
notify your Carrier representative
conduit (Greenfield conduit recommended) is required
according to UL/CSA (Underwriters’ Laboratories/
Canadian Standards Association) code for the FCPS field
wiring. Field supplied 3/8-in. conduit connectors are re
quired for connection to the junction box.
100% Coil Circuiting Applications: 054, 064 Units
/. Piping — Refer to Fig. 10 and 14 for field piping de
tails for 100% coil circuiting. Note that tubes 15 and 22 re
quire cuts on the longer legs of the tubes Two 7/8-in. OD
tubes, approximately 3 in. (76.2 mm) long, must be cut
from the remaining tubes (tubes 21, 23, or 25) and brazed
between the tees (item 8) and coil header stubs. The re
maining tubes are not used in this application and may be
discarded.
2. Install Fan Cycle Pressure Switches and Clamps — Braze 2
valve core bodies (item 5) to designated hole locations on
tubes 19 and 22. Insert valve cores (item 6), into valve core
bodies by threading into place and tightening to 1.5 to
3 in.-lb (169.5 to 339 mN-m). Install FCPSl and FCPS2
(item 7) at designated locations on tubes 19 and 22. Cut
the 3/8-in. field-supplied FCPS conduit to fit between each
FCPS location and the junction box on the unit. Figure 13
shows a typical installation of the conduit. Feed FCPS wires
through each conduit and secure at the switch using each
conduit connector. See Fig. 15. Secure the conduit at the
Junction box with 3/8-in. field-supplied conduit connectors.
Wire FCPSl and FCPS2 according to Fig. 16. Clamp hot
gas line, tube 27, at the location specified in Fig. 14 using
the 1 5/8-in. clamp (item 4) and the 2 screws supplied. Clamp
the liquid line, tube 24, using the 1 1/8-in. clamp (item 2)
and the 2 screws provided.
50/50% Coil Circuiting Applications: 054 and 064 units
1. Piping — Refer to Fig. 10 and 17 for field piping de
tails for 50/50% coil circuiting. Note that tubes 21 and 22
require cuts on the longer legs of the tubes. Two 7/8-in.
OD tubes, approximately 3 in (72.6 mm) long, must be
cut from the remaining tubes (21,25, 26, or 29) and brazed
between the tees (item 8) and coil header stubs. The re
maining tubes are not used in this application and may be
discarded.
2. Install Fan Cycle Pressure Switches and Clamps — Braze 2
valve core bodies (item 5) to designated hole locations on
tubes 19 and 22 Insert valve cores (item 6) into valve core
bodies by threading into place and tightening to 1.5 to
3 in.-lb (169.5 to 339 mN-m). Install FCPSl and FCPS2
(item 7) at designated locations on tubes 19 and 22. Cut the
field-supplied 3/8-in. FCPS conduit to fit between each FCPS
location and the junction box on the unit. Figure 13 shows
a typical installation of the conduit. Feed FCPS wires through
each conduit and secure at the switch using each conduit
connector. See Fig. 15. Secure the conduit at the junc
tion box with 3/8-in. field-supplied conduit connectors. Wire
FCPSl and FCPS2 according to Fig. 16. Clamp hot gas
lines, tube 15, at the location specified in Fig. 17 using the
two 1 3/8-in. clamps (item 3) and 4 screws provided. Clamp
the liquid lines, tubes 21 and 23, using the two 7/8-in. clamps
(item 1) and the 4 screws provided.
A field supplied 3/8-in.
66/34% Coil Circuiting Applications: 054 and 064 Units
NOTE: To operate the 054 and 064 condenser units with
66/34% coil circuiting, an accessory fan control kit is
required. Refer to fan control kit installation instruc
tions for more information.
1. Piping — Refer to Fig. 10 and 18 for field piping de
tails for 66/34% coil circuiting. Note that tube 16 requires
cuts on the longer leg of the tube. Tube 16 is used in the
two specified locations. A 7/8-in. OD tube, approximately
3 in. (72.6 mm) long, must be cut from the remaining tubes
(23 or 26) and brazed between the tee (item 8) and coil
header stub. The remaining tubes are not used in this ap
plication and may be discarded
2. Install Fan-Cycle Pressure Switches and Clamps — Braze 3
valve core bodies (item 5) to designated hole locations on
tubes 19, 21, and 22. Insert valve cores (item 6) into valve
core bodies by threading into place and tightening to 1.5 to
3 in.-lb (169.5 to 339 mN-m). Note that the accessory fan
control kit is required for this coil circuiting. An extra FCPS
and valve assembly is provided with the kit. Install FCPSl,
FCPS2, and FCPS4 (item 7) at designated locations on tubes
19, 21, and 22. Cut the field-supplied 3/8-in. FCPS conduit
to fit between each FCPS location and the junction box on
the unit. See Fig. 13 for typical conduit installation. Feed
FCPS wires through each conduit and secure at the switch
using each conduit connector. See Fig. 15 Secure the con
duit at the junction box with 3/8-in., field-supplied conduit
connectors. Wire FCPSl, FCPS2, and FCPS4 according to
Fig. 16. Note that FCPS2 and FCPS4 are wired in parallel.
Fan 4 is shared by the 34% and 66% refrigeration circuit;
the fan switches on if either circuit requires it. At the loca
tion specified in Fig. 18, clamp hot gas lines, tubes 15 and
30, using a 1 3/8-in. clamp (item 3) and a 1 1/8-in. clamp
(item 2) with the 4 screws supplied. Clamp the liquid lines,
tubes 21 and 25, with 7/8-in. clamps (item 1) and 4 screws
provided.
100% Coil Circuiting Applications; 074 Units
1 Piping — Refer to Fig. 10 and 19 for field piping
details for 100% coil circuiting. Note that tube 16 requires
a cut on the longer leg of the tube. Two 7/8-in. OD tubes
approximately 3 in. (72.6 mm) long, must be cut from
the remaining tubes (22 or 23) and brazed between the tees
(item 9) and coil header stubs. The remaining tubes are not
used and may be discarded.
2 Install Fan Cycle Pressure Switches and Clamps — Braze 2
valve core bodies (item 6) to designated hole locations on
tubes 20 and 24. Insert valve cores (item 7) into valve core
bodies by threading into place and tightening to 1.5 to
3 in.-lb (169 to 339 mN-m). Install FCPSl and FCPS2
(item 8) at designated locations on tubes 20 and 24. Cut the
3/8-in. field-supplied FCPS conduit to fit between each FCPS
location and the junction box on the unit. See Fig. 13 for
typical conduit installation. Feed FCPS wires through each
conduit and secure at the switch using each conduit con
nector. See Fig. 15. Secure the conduit at the junction
box with 3/8-in. field-supplied conduit connectors. Wire
FCPSl and FCPS2 according to Fig. 20. Clamp hot gas
line, tube 28, using 2 1/8-in. clamp (item 5) at the location
specified in Fig. 19 with the 2 screws supplied. Clamp the
liquid line, tube 25, using 1 1/8-in. clamp (item 2) and the
2 screws provided.
#
I
ITEM
10
11
12
13
141
15
16
17
18
19
20
21
22
23
241
25
26
271
28
29
30
QUANTITY
1
21Tube Clamp
3
4
5
6
7
8
9
2Tube Clamp7/8 in.
2Tube Clamp
1Tube Clamp
2Valve Body
2Valve Core
2Switch
2Tee
1Tee
1Tee
1Solder Coupling
1Elbow, 90 Degree1 1/8 in
2Tee
Tee
2
2
2
1
1
1
1Liquid Tube
1
1
1
1
8
1
1
Discharge Tube
Discharge Tube
Discharge Tube1 1/8 in. CD X 24 5/32 in L x 5 1/16 in W
Discharge Tube1 3/8 in. CD
Liquid Tube
Discharge Tube
1 1/8 in.
1 3/8 in.
1 5/8 in.
1/4 in. male flare fitting
-
Fan cycle pressure switch
7/8 in. X 7/8 in X 7/8 in.
1 1/8 in. X 1 1/8 in. X 1 1/8 in.
7/8 in. X 7/8 in. X 1 1/8 in
1 1/8 in.
1 3/8 in. X 1 1/8 in. X 1 1/8 in
1 5/8 in X 1 3/8 in. X 1 3/8 in.
1 3/8 in. CD X 44 23/32 in L x 10 1/16 in. W
1 1/8 in. CD X 32 11/32 in L X 5 1/16 in. W
7/8 in CD X 16 13/16 in. L X 3 7/16 in. W
1 1/8 in. ODx 24 1/2 in. L
7/8 in. CD X 17 11/16 in L
7/8 in. CD X 18 13/16 in Lx 3 7/16 in. W
7/8 in CD x8 11/16in. Lx5 1/16in. W
1 1/8 in. ODx 7 3/4 in L
7/8 in. CD X 7 3/4 in. L
7/8 in. CD X 18 1/4 in. L
1 5/8 in. OD X 34 in. L
1/4-14x5/8 in. long
7/8 in. OD X 3 7/8 in long
1 1/8 in. OD X 44 19/32 in. L x 11 9/16 in. W
Fig. 5 - 09DK054,064 Tubing Package Contents
16
ITEMQUANTITY
1
2
21
3
1
42
51
6
2
72
82
9
10
2
1
NAME
Tube Clamp
Tube Clamp
Tube Clamp
Tube Clamp
Tube Clamp
Valve Body
Valve Core
SwitchFan cycle pressure switch
Tee
Coupling
111Tee
12
132
14
151
162
1
1
Tee
Tee
Tee
Discharge Tube1 3/8 in. CD X 50 25/32 in. L x 14 1/8 in. W
Discharge Tube1 5/8 in. OD X 50 29/32 in. L x 12 1/16 in. W
172Discharge Tube
18
191
2Discharge Tube1 3/8 in. OD X 19 7/8 in. L x 4 3/4 in. W
Discharge Tube1 5/8 in. OD
201Liquid Tube
211Discharge Tube
221Liquid Tube
23
241
251
261
27
281
298
1Liquid Tube
Liquid Tube7/8 in. OD X 14 13/16 in. L X 3 7/16 in. W
Straight Tube1 1/8 in. ODx7 3/4in. L
Straight Tube7/8 in. OD X 8 1/4 in. L
1
Straight Tube
Straight Tube2 1/8 in. OD X 40 in. L
Screw1/4 in.-14 X 5/8 in. long
DESCRIPTION
7/8 in.
1 1/8 in.
1 3/8 in
1 5/8 in.
2 1/8 in.
1/4 in. maie flare fitting
-
7/8 in. X 7/8 in. X 7/8 in
1 3/8 in. X 1 3/8 in
7/8 in. X 7/8 in X 1 1/8 in
1 3/8 in. X 1 3/8 in. X 1 3/8 in.
1 5/8 in X 1 3/8 in. X 1 3/8 in.
. 2 1/8 in. X 1 5/8 in. X 1 5/8 in.
1 3/8 in. OD X 34 1/2 in. L X 4 3/4 in. W
7/8 in OD X 23 13/16 in. L X 3 7/16 in. W
1 3/8 in. OD X 28 3/8 in. L
7/8 in. OD X 23 1/4 in. L (074 Units only)
7/8 in. OD X 18 1/4 in. L
7/8 in. OD X 17 7/8 in. L
Fig. 6 - 09DK074,084 Tubing Package Contents
10
#
I
ITEM
1
2
3
4
5
6
50/50% Coil Circuiting Applications: 074 Units
1. Piping — Refer to Fig. 10 and 21 for field piping de
tails for 50/50% coil circuiting. Note that tube 23 requires a
cut, located exactly at the location of the hole in the tube.
Tube 23 is used in the two locations specified. Two 7/8-in.
OD tubes, approximately 3 in. (72.6 mm) long, must be
cut from the remaining tubes (22, 26, or 27) and brazed be
tween the tees (item 9) and coil header stubs. The remain
ing tubes are not used in this application and may be dis
carded.
2, Install Fan Cycle Pressure Switches and Clamps — Braze 2
valve core bodies (item 6) to designated hole locations on
tubes 20 and 24. Insert valve cores (item 7) into valve core
bodies by threading into place and tightening to 1.5 to
3 in.-lb (169.5 to 339 mN-m). Install FCPSl and FCPS2
(item 8) at designated location on tubes 20 and 24. Cut the
3/8-in. field-supplied FCPS conduit to fit between each FCPS
location and the junction box on the unit. See Fig. 13 for
typical conduit installation. Feed FCPS wires through each
conduit and secure at the switch using each conduit con
nector. See Fig. 15. Secure the conduit at the junction box
with 3/8-in. field-supplied conduit connectors. Wire FCPSl
and FCPS2 according to Fig. 20. Clamp hot gas line, tube
16, at the location specified in Fig. 21 using two 1 5/8-in.
clamps (item 4) and 4 screws supplied. Clamp the liquid
lines, tube 23, using the two 7/8-in. clamps (item 1) and
the 4 screws provided.
68/32% Coil Circuiting Applications: 074 Units
NOTE: To operate the 074 condenser units with 68/32%
coil circuiting, an accessory fan controi kit is re
quired. See accessory installation instructions for more
information.
QUANTITY
1
1Tee2Va in. X iya in X 1% in
1Discharge Tube1% in. OD X 5V4 in. L
1Elbow% in. X % in.
1
1Elbow1% in. X iys in
Fig. 7 — 09DK094 Tubing Package Contents
NAME
Liquid Tube% in. X 3V2 in. L
TeeIVsin X % in X Vs in.
1. Piping — Refer to Fig. 10 and 22 for field piping de
tails for 68/32% coil circuiting. Note that tubes 17 and 20
require cuts on the longer legs of the tubes. Tube 17 is used
in the two locations specified. Also, a 7/8-in. OD tube, ap
proximately 3 in. (72.6 mm) long, must be cut from the
remaining tubes (23 or 27) and brazed between the tee (item
9) and coil header stub. The remaining tubes are not used
in this application and may be discarded.
2. Install Fan Cycle Pressure Switches and Clamps — Braze 3
core bodies (item 6) to designated hole locations on tubes
20, 22, and 24. Insert valve cores (item 7) into valve core
bodies by threading into place and tightening to 1.5 to
3 in.-lb (169.5 to 339 mN-m). Note that the accessory fan
control kit is required for this coil circuiting. An extra FCPS
and valve assembly is provided with the kit. Install FCPSl,
FCPS2, and FCPS4 (item 8) at designated locations on tubes
20, 22, and 24. Cut the 3/8-in. field-supplied FCPS conduit
to fit between each FCPS location and the junction box on
the unit. See Fig. 13 for typical conduit installation. Feed
FCPS wires through each conduit and secure at the switch
using each conduit connector. See Fig. 15. Secure the con
duit at the junction box with 3/8-in. field-supplied conduit
connectors. Wire FCPSl, FCPS2 and FCPS4 according to
Fig. 20. Note that FCPS2 and FCPS4 are wired in parallel.
Fan 4 is shared by the 32% and 68% refrigeration circuit;
the fan switches on if either circuit requires it. At the loca
tion specified in Fig. 22, clamp hot gas lines, tube 15 with
a 1 3/8 in. clamp (item 3) and tube 16 with a 1 5/8 in.
clamp (item 4) with the 4 screws supplied. Clamp the liq
uid lines, tube 22, with a 7/8 in. clamp (item 1) and tube 25
with a 1 1/8 in. clamp (item 2) with the 4 screws supplied.
DESCRIPTION
11
Loading...
+ 24 hidden pages
You need points to download manuals.
1 point = 1 manual.
You can buy points or you can get point for every manual you upload.