HS18 SERIES CONDENSING UNITS
EXPANSION VALVE AIR CONDITIONING SYSTEM
3.6 to 16.0 kW (12 200 to 54 700 Btuh) Cooling Capacity
HS18
November 1993
Supersedes June 1991
Bulletin #490002
MATCHED REMOTE SYSTEMS – 50hz
ENGINEERING DATA
CONDENSING UNITS – 50hz
ENGINEERING DATA
Application — HS18 series condensing units are applicable to
expansion valve systems and may be installed at ground lev-
el or on a roof. Units match up to a variety of blower powered
or add-on evaporators for a wide selection of cooling capaci-
ties for selective sizing and application versatility. For evapo-
rator unit data, see tab section Coils — Blower Coil Units.
Units are shipped completely assembled, piped and wired.
Each unit is test operated at the factory to insure proper op-
eration. Installer has only to set unit in desired location, con-
nect refrigerant lines and make electrical connections to com-
plete a low cost installation.
Completely Tested — Condensing units have been tested in
the Lennox Research Laboratory Environmental Test Rooms
which meet American Society of Heating, Refrigeration and
Air-Conditioning Engineers (ASHRAE) Standard 37 require-
ments. The rating test conditions are those included in Air-
Conditioning and Refrigeration Institute (ARI) Standard
210/240-89 while operating at rated voltages and air volumes.
In addition, units have been sound rated in the Lennox rever-
berant sound test room in accordance with test conditions for
Air-Conditioning and Refrigeration Institute (ARI) Standard
270-84. Condensing units and components within are
bonded for grounding to meet safety standards for servicing
required by Underwriter’s Laboratories (U.L.) and the Interna-
tional Electrotechnical Commission (IEC). Blower data is from
unit tests conducted in the Lennox air test chamber.
Weather Resistant Cabinet and Base Section — Heavy gauge
galvanized steel cabinet and base section are subjected to a
five station metal wash process prior to a finish coat applica-
tion of baked-on outdoor enamel. Attractive enamel finish
provides the cabinet and base section with long lasting
protection from rust and corrosion. Drainage holes are pro-
vided in the base section for moisture removal. Heavy duty
channels under the the base raise the unit off of the mounting
surface away from damaging moisture.
(Continued)
Typical Applications
Unit on slab at ground level Multiple units on rooftop
NOTE — Specifications, Ratings and Dimensions subject to change without notice. 1993 Lennox Industries Inc.
FEATURES
Control Box — Conveniently located for easy access. All con-
trols are pre-wired at the factory. Terminal blocks are pro-
vided for both low and high voltage field connections.
Copper Tube/Enhanced Fin Outdoor Coil — Lennox designed
and fabricated coil is constructed of precisely spaced ripple-
edged aluminum fins machine fitted to seamless copper
tubes. Four-sided wrap-around coil configuration provides
extra large surface area with low air resistance. Lanced fins
provide maximum exposure of the fin surface to air stream
resulting in excellent heat transfer. Fins are equipped with
collars that grip the tubing for maximum contact area. Precise
circuiting provides uniform refrigerant distribution for high
efficiency. Flared shoulder tubing connections and silver sol-
dering result in tight, leakproof joints. Long-life copper tubing
is corrosion-resistant and easy to field service. Coil is factory
tested under high pressure to insure leakproof construction.
Entire coil is accessible for cleaning. Corrosion-resistant
polyvinyl chloride (PVC) coated steel wire condenser coil
guard is furnished as standard.
Compressor — Compressor is hermetically sealed and pro-
vides trouble-free operation and long service life. Built-in
protection devices assure protection from excessive current
and temperatures. Refrigeration cooled and overload pro-
tected. HS18-141, HS18-513 and HS18-653 models are fur-
nished with a crankcase heater as standard equipment to en-
sure proper compressor lubrication at all times. Heater is
temperature actuated to operate only when required. The
compressor components are spring mounted within the
sealed housing. In addition, the compressor is installed in the
unit on resilient rubber mounts for quiet and vibration free
operation.
Condenser Fan — Efficient direct drive fan moves large air
volumes uniformly through the entire condenser coil result-
ing in high refrigerant cooling capacity. Vertical discharge of
air minimizes operating sounds and eliminates hot air dam-
age to lawn and shrubs. Fan motor has permanently lubri-
cated ball bearings and is inherently protected and totally en-
closed for maximum protection from weather, dust and
corrosion. Rain shield on motor provides additional protec-
tion from moisture. Fan service access is provided by remov-
al of fan guard. Corrosion-resistant polyvinyl chloride (PVC)
coated steel wire fan guard is furnished as standard.
High Capacity Drier — Furnished for field installation. Drier
traps any moisture or dirt that could contaminate the refriger-
ant system.
High Pressure Switch — Shuts off unit if abnormal operating
conditions cause the discharge pressure to rise above set-
ting. Switch protects compressor from excessive condensing
pressure. Manual reset.
Refrigerant Line Connections, Electrical Inlets and Service
Valves — Suction and liquid line connections are located out-
side of the unit cabinet and are made with sweat connections.
Fully serviceable brass service valves prevent corrosion and
provide easy access to refrigerant system. Suction valve can
be fully shut off, while the liquid valve may be backseated to
manage refrigerant charge while servicing the system. Field
installed thermometer well is furnished for installation in the
liquid line. Valves and gauge ports are accessible outside of
the unit cabinet. See dimension drawing.
Thermostat — Deluxe wall mounted combination heating/
cooling Celsius thermostat is furnished as standard with
HS18-411, -413, -513 and -653 models. Thermostat features
temperature setting dial, system selector switch (Cool-Off-
Heat) and fan control switch (Auto-On) for intermittent or
continuous blower operation.
Thermostat is not furnished with HS18-141, -211, -261 and
-311 models and must be ordered extra.
OPTIONAL ACCESSORIES (Must Be Ordered Extra)
Crankcase Heater (Optional) — Available for HS18-211 thru
HS18-410 models. Crankcase heaters P-8-8852 (68887) are
not furnished and must be ordered extra. Heater prevents
migration of liquid refrigerant into the compressor and en-
sures proper compressor lubrication. HS18-141, -510 and
-650 model compressors are equipped with crankcase heat-
ers furnished as standard.
Refrigerant Line Kits (Optional) — Lines are available in sev-
eral lengths. See Refrigerant Line Kit table. Lines (suction and
liquid) are shipped refrigeration clean. Lines are cleaned,
dried and pressurized and sealed at the factory. Suction line
is fully insulated. Lines are furnished with a flare fitting (evap-
orator unit connection) at one end and stubbed (no fitting) at
the opposite end for connection to condensing unit.
Expansion Valve Kits (Optional) — Must be ordered extra for
field installation on certain evaporator units. See Ratings
table for kit requirement.
Mounting Base (Optional) — Mounting base provides a per-
manent foundation for condensing units. High density poly-
ethylene structural material is lightweight, sturdy, sound ab-
sorbing and will withstand the effects of sun, heat, cold,
moisture, oil and refrigerant. Will not mildew or decompose.
Can be shipped singly or in packages of six to a carton.
HS18-141, 211, 261, 311, and -410 models use MB1-22 (99C78)
565 mm x 565 mm x 76 mm (22-1/4 in. x 22-1/4 in. x 3 in.) ship-
ping weight 5 kg (10 lbs.). HS18-513 and HS18-653 models
use MB1-24 (78H50) 813 mm x 864 mm x 76 mm (32 in. x 34
in. x 3 in.) (813 mm x 864 mm x 76 mm), shipping weight 7 kg
(15 lbs.) each.
Low Ambient Kit (Optional) — Condensing units will operate
satisfactorily down to 45F (7C) outdoor air temperature
without any additional controls. For cases where operation of
the unit is required at low ambients, a Low Ambient Control
Kit LB-57113BC (24H77) can be added in the field, enabling
unit to operate properly down to 30F (–1C).
—
2 —
RATINGS
Condensing Cooling Ratings Evaporator Unit ***ExpansionCondensing
Unit
Model Number
(*Sound Rating
Total Cooling
Capacity
Total
Power
Input
Coefficient
of
Performance
Energy
Efficiency
Ratio Up-Flow Down-Flow Horizontal
***Expansion
Valve
Kit
Required( Sound Rating
Number-bels) kW Btuh
Input
kW
Performance
(Output/Input)
Ratio
(Btuh/Watt)
p Required
HS18-141 3.6 12 200 1.4 2.6 8.7 C22-21(FC) CR22-21 CH22-21 FactoryHS18-141
(8.0) 3.8 12 900 1.4 2.7 9.2 C22-26(FC)
C22-26W(FC) - - - - - - - -
Factory
Installed
5.1 17 300 2.2 2.3 7.9 C24-21(FC) CR24-21 CH24-21 LB-85663F
5.3 18 100 2.2 2.4 8.2 C24-26(FC)
C24-26W(FC) - - - - - - - -
LB-85663F
(49J24)
HS18-211
(7 8)
5.4 18 500 2.2 2.5 8.4 C22-21(FC) CR22-21 CH22-21 Factory(7.8)
5.5 18 900 2.2 2.5 8.6 C22-26(FC)
C22-26W(FC) - - - - - - - -
Factory
Installed
5.5 18 900 2.3 2.4 8.2 **CB18-26 - - - - **CBS18-26 LB-25778CG
(57C98)
6.1 21 000 2.6 2.3 8.1 C22-21(FC) CR22-21 CH22-21 Factory
Installed
HS18-261
6.2 21 300 2.6 2.4 8.2 C24-26(FC)
C24-26W(FC) - - - - - - - - LB-85663F
(49J24)
(8.0) 6.5 22 200 2.7 2.4 8.2 C22-26(FC)
C22-26W(FC) - - - - - - - - Factory
Installed
6.5 22 200 2.7 2.5 8.2 **CB18-26 - - - - **CBS18-26 LB-25778CG
(57C98)
6.9 23 500 3.0 2.3 7.8 C24-26(FC)
C24-26W(FC) - - - - - - - - LB-85663H
(49J26)
7.2 24 500 3.0 2.4 8.2 C22-26(FC)
C22-26W(FC) - - - - - - - - Factory
Installed
7.4 25 300 3.1 2.4 8.2 C24-31(FC)
C24-31W(FC)
CR24-31
CR24-31W CH24-31
LB-85663H
HS18-311
(8 0)
7.5 25 600 3.1 2.4 8.3 C24-41(FC)
C24-41W(FC) CR24-41 CH24-41 (49J26)
(8.0)
7.6 25 800 3.2 2.4 8.1 **CB18-26 - - - - **CBS18-26 LB-25778CE
(83A67)
7.7 26 400 3.2 2.4 8.3 C22-31(FC)
C22-31W(FC)
CR22-31
CR22-31W CH22-31 Factory
Installed
8.1 27 500 3.2 2.5 8.6 C22-41(FC) CR22-41 CH22-41 Installed
8.5 29 000 3.3 2.6 8.7 **CB18-41 - - - - **CBS18-41 LB-25778CE
(83A67)
9.5 32 600 3.9 2.4 8.4 C24-31(FC)
C24-31W(FC)
CR24-31
CR24-31W CH24-31 LB-85663H
(49J26)
10.0 34 000 3.9 2.6 8.7 C22-31(FC)
C22-31W(FC)
CR22-31
CR22-31W CH22-31 Factory
Installed
10.0 34 300 3.9 2.6 8.8 C24-41(FC)
C24-41W(FC) CR24-41 CH24-41 LB-85663H
(49J26)
HS18-411
HS18-413
(8 0)
10.3 35 200 4.1 2.5 8.6 **CB18-41 - - - - **CBS18-41 LB-25778CF
(83A68)
(8.0)
10.4 35 500 4.0 2.6 8.9 C24-51(FC) CR24-51 CH24-51 LB-85663H
(49J26)
10.5 35 700 4.0 2.6 8.9 C22-41(FC) CR22-41 CH22-41 Factory
10.6 36 200 4.0 2.7 9.1 C22-51(FC) CR22-51 CH22-51
y
Installed
10.6 36 200 4.2 2.5 8.7 **CB18-51 - - - - **CBS18-51 LB-25778CF
(83A68)
*Sound rating number rated at test conditions for Air-Conditioning and Refrigeration Institute (ARI) Standard 270.
The rating test conditions are those included in Air-Conditioning and Refrigeration Institute (ARI) Standard 210/240-89 while operating at rated voltage and air volumes.
Cooling Ratings —35C (95F) outdoor air temperature , 26.7C (80F) dry bulb and 19.4C (67F) wet bulb entering evaporator air with 6.0 m (20 feet) of connecting
refrigerant lines.
Furnished as standard with coil.
**Blower powered evaporator unit.
***Expansion valve kit is optional and must be ordered extra, unless shown as factory installed.
—
3 —
RATINGS
Condensing Cooling Ratings Evaporator Unit
***Expansion
Condensing
Unit
Model Number
(*Sound Rating
Total Cooling
Capacity
Total
Power
Input
Coefficient
of
Performance
Energy
Efficiency
Ratio Up-Flow Down-Flow Horizontal
***Expansion
Valve
Kit
R i d
( Sound Rating
Number-bels) kW Btuh
Input
kW
Performance
(Output/Input)
Ratio
(Btuh/Watt)
Up Flow Down Flow Horizontal Required
12.6 43 100 5.2 2.4 8.4 **CB18-51 - - - - **CBS18-51 LB-25778CC
12.9 44 000 5.3 2.5 8.4 **CB18-65 - - - - **CBS18-65 (38919)
HS18-513 13.1 44 800 4.7 2.8 9.5 C24-51(FC) CR24-51 CH24-51 LB-85663D
(8.0) 13.1 44 900 4.7 2.8 9.6 C24-65(FC) CR24-65 CH24-65 (43J76)
13.4 45 700 4.7 2.9 9.7 C22-51(FC) CR22-51 CH22-51 Factory
13.4 45 800 4.8 2.8 9.5 C22-65(FC) CR22-65 CH22-65
y
Installed
14.9 51 000 5.5 2.7 9.3 C24-65(FC) CR24-65 CH24-65 LB-85663E
(43J77)
HS18-653
(8.0) 15.4 52 600 6.0 2.6 8.8 **CB18-65 - - - - **CBS18-65 LB-25778CD
(38920)
16.0 54 700 5.3 3.0 10.3 C22-65(FC) CR22-65 CH22-65 Factory
Installed
*Sound rating number rated at test conditions for Air-Conditioning and Refrigeration Institute (ARI) Standard 270.
The rating test conditions are those included in Air-Conditioning and Refrigeration Institute (ARI) Standard 210/240-89 while operating at rated voltage and air volumes.
Cooling Ratings —35C (95F) outdoor air temperature , 26.7C (80F) dry bulb and 19.4C (67F) wet bulb entering evaporator air with 6.0 m (20 feet) of connecting
refrigerant lines.
Furnished as standard with coil.
**Blower powered evaporator unit.
***Expansion valve kit is optional and must be ordered extra, unless shown as factory installed.
SPECIFICATIONS
Model Number HS18-141 HS18-211 HS18-261 HS18-311 HS18-411
HS18-413 HS18-513 HS18-653
Net face area Outer coil 0.78 (8.4) 0.78 (8.4) 0.78 (8.4) 0.86 (9.2) 0.86 (9.2) 1.69 (18.2) 1.69 (18.2)
— m 2 (ft.2 ) Inner coil - - - - - - - - - - - - - - - - 0.32 (3.4) - - - - 0.59 (6.4)
Condenser
Coil Tube outside diameter — mm (in.) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8)
Number of rows 1 1 1 1 1.4 1 1.4
Fins per m (inch) 630 (16) 630 (16) 630 (16) 787 (20) 709 (18) 787 (20) 787 (20)
Diameter — mm (in.) 457 (18) 457 (18) 457 (18) 457 (18) 457 (18) 559 (22) 559 (22)
Number of blades 4 4 4 4 4 4 4
Condenser Motor output — W (hp) 149 (1/5) 149 (1/5) 149 (1/5) 149 (1/5) 149 (1/5) 249 (1/3) 249 (1/3)
Fan Air volume — L/s (cfm) 1025 (2170) 1025 (2170) 1025 (2170) 980 (2080) 980 (2080) 1530 (3250) 1500(3170)
Rev/Min 900 900 900 900 900 900 900
Motor input — W 200 200 200 200 200 400 400
*Refrigerant charge furnished (HCFC-22) 0.99 (35) 1.84 (47) 1.19 (42) 1.50 (53) 1.93 (68) 3.23 (114) 3.94 (139)
Liquid line connection – outside diameter – mm (in.) sweat 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8) 9.5 (3/8)
Suction line connection – outside diameter – mm (in.) sweat 16 (5/8) 16 (5/8) 16 (5/8) 19 (3/4) 19 (3/4) 22.2 (7/8) 28.6 (1-1/8)
Shipping weight — kg (lbs.) 1 package 51 (113) 64 (141) 63 (138) 66 (146) 76 (168) 98 (215) 11 (245)
*Refrigerant charge sufficient for 6.0 m (25 feet) of connecting refrigerant lines.
—
4 —
ELECTRICAL DATA — HS18-141-211-261-311
Model Number HS18-141 HS18-211 HS18-261 HS18-311
Line voltage and phase (50hz) 220/240V
1 phase
220/240V
1 phase
220/240V
1 phase
220/240V
1 phase
Voltage range (minimum — maximum) 198 — 264V 198 — 264V 198 — 264V 198 — 264V
Compressor
Rated load amps 5.7 9.4 10.2 13.6
Compressor
Locked rotor amps 31 43 52 78
Condenser Coil
Fan Motor
Full load amps 1.2 1.2 1.2 1.2
Fan Motor
(1 phase) Locked rotor amps 2.8 2.8 2.8 2.8
NOTE — Refer to local electrical codes to determine wire, fuse and disconnect size requirements.
ELECTRICAL DATA — HS18-411-413-513-653
Model Number HS18-411 HS18-413 HS18-513 HS18-653
Line voltage and phase (50hz) 220/240V
1 phase
380/420V
3 phase
with
neutral
380/420V
3 phase
380/420V
3 phase
Voltage range (minimum — maximum) 198 — 264V 342 — 462V 342 — 462V 342 — 462V
Compressor
Rated load amps 14.6 5.0 6.6 9.2
Compressor
Locked rotor amps 84.9 37.7 46 65
Condenser Coil
Fan Motor
Full load amps 1.2 *1.2 1.1 1.1
Fan Motor
(1 phase) Locked rotor amps 2.8 *2.8 2.3 2.3
NOTE — Refer to local electrical codes to determine wire, fuse and disconnect size requirements.
Neutral required with optional Transformer Kit (16F34).
*Motor is 220/240 volt and is connected from phase to neutral.
FIELD WIRING
DISCONNECT
SWITCH
(Not Furnished
By Lennox)
DISCONNECT
SWITCH
(Not Furnished
By Lennox)
A — Single Phase
B — Single Phase, Three Phase with neutral or Three Phase — See
Electrical Data
C — Two wire 24V
Three wire 24V with optional Transformer Kit (16F34)
D — Four Wire 24V
NOTE — Field wiring not furnished by Lennox.
All wiring must conform to local electrical codes.
B
LENNOX
CONDENSING
UNIT
LENNOX
HEATING UNIT
OR
*BLOWER COIL
EVAPORATOR
UNIT
THERMOSTAT
(*Optional)
C
D A
*Thermostat is furnished with HS18-411-413-513-653 models.
Not furnished with HS18-141-211-261-311 models.
—
5 —
REFRIGERANT LINE KITS
Condensing
Unit
Model Number
Line
Set
Model
Number
Suction and
Liquid Line
Length
Liquid
Line
Outside
Diameter
Suction
Line
Outside
Diameter
Number m ft. mm in. mm in.
L10-26-20 6.1 20
HS18-141
HS18-211 L10-26-25 7.6 25 9 5 3/8 16 5/8HS18-211
HS18-261 L10-26-35 10.7 35 9.5 3/8 16 5/8
L10-26-50 15.2 50
L10-41-20 6.1 20
HS18-311
HS18-411 L10-41-30 9.1 30 9 5 3/8 19 3/4HS18-411
HS18-413 L10-41-40 12.2 40 9.5 3/8 19 3/4
L10-41-50 15.2 50
HS18 513
L10-65-30 9.1 30
HS18-513
*HS18-653 L10-65-40 12.2 40 9.5 3/8 22.2 7/8
HS18 653
L10-65-50 15.2 50
*22 mm (7/8 inch) sweat x 28.5 mm (1-1/8 inch) sweat reducer adaptor required
for suction line connection to condensing unit.
INSTALLATION CLEARANCES — mm (inches)
NOTE–1219 mm (48 inches) clearance required top of unit.
*NOTE–One side must be 914 mm (36 inches) for service.
Two of remaining three sides may be 305 mm (12 inches).
*914
(36)
*914
(36)
914
(36)
914
(36)
DIMENSIONS — mm (inches)
DIMENSION DRAWING HERE
(maximum 30 picas height)
RATINGS — 50hz
NOTE — For Temperatures and Capacities not shown in tables, see bulletin — Cooling Unit Rating Table Correction Factor Data in Miscellaneous Engineering Data Section.
.15 325 3.4 11 600 1.11 .71 .85 .97 3.2 10 900 1.06 .72 .87 1.00 3.0 10 400 1.01 .74 .90 1.00 2.9 9800 0.96 .76 .92 1.00
.19 400 3.6 12 200 1.13 .75 .91 1.00 3.4 11 600 1.07 .77 .93 1.00 3.2 11 000 1.02 .78 .96 1.00 3.0 10 400 0.97 .80 .98 1.00
.22 475 3.8 12 800 1.14 .79 .96 1.00 3.6 12 200 1.08 .81 .98 1.00 3.4 11 500 1.03 .83 1.00 1.00 3.2 10 900 0.98 .85 1.00 1.00
.15 325 3.6 12 200 1.13 .56 .70 .83 3.4 11 500 1.07 .57 .71 .85 3.2 11 000 1.02 .58 .73 .87 3.0 10 400 0.97 .59 .75 .89
.19 400 3.8 12 900 1.14 .58 .74 .88 3.6 12 200 1.09 .59 .75 .90 3.4 11 600 1.03 .61 .77 .93 3.2 11 000 0.98 .62 .80 .95
.22 475 3.9 13 400 1.15 .61 .77 .94 3.7 12 700 1.09 .62 .80 .96 3.5 12 100 1.04 .63 .82 .98 3.3 11 400 0.98 .65 .84 1.00
.15 325 3.7 12 700 1.14 .42 .56 .70 3.5 12 100 1.08 .42 .57 .71 3.4 11 500 1.03 .43 .58 .72 3.2 10 900 0.98 .43 .59 .74
.19 400 4.0 13 500 1.15 .43 .58 .74 3.8 12 800 1.10 .43 .59 .75 3.6 12 200 1.04 .44 .61 .77 3.4 11 500 0.98 .44 .62 .78
.22 475 4.1 14 100 1.16 .44 .61 .77 3.9 13 400 1.11 .44 .62 .79 3.7 12 700 1.05 .45 .63 .81 3.5 12 000 0.99 .45 .65 .83
Enter-
ing
