CHS SERIES 15
TON
COMMERCIAL SPLIT SYSTEM HEAT PUMPS
Standard--Efficiency Outdoor Section
REFRIGERATION CIRCUIT
· All models are equipped with reciprocating serviceable, semi--hermetic
compressor with spring isolators, automatically reversible oil pump, and
thermal overload protection.
· Copper tube/aluminum fin condensor coils with mechanically bonded plate
fins and sub cooling circuit.
· Suction line accumulator with fusible plug.
· High pressure switch, loss of charge switch, and crankcase heaters.
· State of the art defrost system.
· Direct drive, vertical discharge fans.
· Compressor short cycle protection.
· Liquid line solenoid valve
· Intermediate season head pressure control.
Representative photo only, some models may vary in appearance.
BUILT TO LAST
· Pre--painted galvanized steel cabinet for long life and quality appearance.
· Commercial strength base rails with built--in rigging capability.
EASY TO INSTALL AND SERVICE
· Ground or rooftop installation
· Liquid and suction line service valves.
· Low voltage control wire terminal block.
· One (1) year limited warranty on parts and a five (5) year compressor
protection plan.
· SPLIT SYSTEMS · PACKAGED AIR CONDITIONERS ·
· HEAT PUMPS · AIR HANDLERS · MANUFACTURED HOME AIR
CONDITIONERS · GAS, OIL AND ELECTRIC FURNACES
RESIDENTIAL AND COMMERCIAL SYSTEMS
COMBINATION GAS / ELECTRIC UNITS
International Comfort Products
650 Heil Quaker Avenue
Lewisburg, Tn. 37091
506 31 2102 01
9/27/05
Table of Contents
Page
Features/Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unit Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3--4
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6--7
Typical Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Operating Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Guide Specs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
MODEL NUMBER IDENTIFICATION GUIDE
MODEL NUMBER
C
H
S
180
H
000
B
Sales Code
PRODUCT FAMILY
Condenser
TYPE
H= Heat Pump
A = Air Conditioner
000 = NO HEAT
VOLTAGE / PHASE / HERTZ
H = 208/230--3--60
L = 460--3--60
COOLING CAPACITY (NOMINAL BTUH)
180 = 15 Ton
DESIGN SERIES
S = Standard Efficiency
E = Ashrae Efficient
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
2
UNIT SPECIFICATIONS
Electrical
Volts / Phase / Hertz
Voltage Min -- Max
Total Unit Amps
Min. Circuit Amp.
Power Supply MOCP *
Compressor - 1 Circuit
Circuit 1 -- RLA / LRA
Type
No. Cylinders
Speed (rpm)
Oil (Oz)
Condenser Fan Data
Quantity
Volts/Phase/Hertz
FLA
Watts Total
Blades/Diameter
Hp -- Rpm -- Speeds
Bearing Type
Rotation (Shaft End)
Max. CFM
Condenser Coil
Rows / Fins per Inch
Total Face Area--Sq, ft.
Tube Diameter
Refrigerant
Type
Shipping Charge -- (lbs.)
Approximate Operating Charge -- (lbs.), Based On BHC/
HBC180 Series Air Handler
Line Size Liquid I.D. (in.)
Line Size Suction I.D. (in.)
Controls
High Press. Switch Auto Reset -- Open / Close psi
Low Press. Switch Auto Reset -- Open-- Close psi
Defrost Sensor -- Open-- Close psi
Crankcase Heater Type
CHS180H000B
208--230/3/60
187--253
67.9
87.5
125
CHS180L000B
460/3/60
414--528
31.6
40.7
60
Semi--hermetic Reciprocating
63.6 / 266
One 06DF537 **
6
1750
128
29.3 / 120
One 06DF537 **
6
1750
128
2
208--230/1/60
4.3
1460
2 / 26
1/2 / 1075 / 1
Sleeve
CCW
11,000
2
460/1/60
2.3
1460
2 / 26
1/2 / 1075 / 1
Sleeve
CCW
11,000
3 / 15
29.2
3/8”
3 / 15
29.2
3/8”
R--22
3 ***
R--22
3 ***
37 ****
37 ****
5/8”
1--5/8”
5/8”
1--5/8”
395 (+/--20) / 295 (+/--20)
7 (+/--3) / 22 (+/--5)
28° F
Band
395 (+/--20) / 295 (+/--20)
7 (+/--3) / 22 (+/--5)
28° F
Band
803
803
Misc.
Operating Weight ( lbs. )
*
**
***
****
Fuse or HACR circuit breaker
Equipped with electrically operated unloader, capacity steps 100%, 67% in cooling mode.
Unit is factory supplied with holding charge only.
Typical operating charge with 25 ft. of interconnecting pipe.
PERFORMANCE DATA COOLING
Standard Outdoor Unit / Indoor Unit
Rated Net Capacity Btuh*
IPLV
EER
Evaporator Rated Airflow
CHS180 / BHC/HBC180
174,000
11.3
9.0
6000
PERFORMANCE DATA HEATING
Standard Outdoor Unit / Indoor Unit
High Heat Capacity Btuh*
Low Heat Capacity Btuh*
High Heat COP
Low Heat COP
CHS180 / BHC/HBC180
172,000
100,000
3.1
2.1
* Net Capacity Ratings based on ARI Test Standards, 95° F Amb. 80° F DB / 67° F WB.
Outdoor Sound Power
Unit
CHS180
Sound Rating
dBA (60 Hz)
86.0
63
N/A
125
93.0
250
86.0
Octave Bands
500
1000
83.0
80.0
2000
78.0
4000
73.0
8000
71.0
Bels = Sound Levels (1 bel = 10 decibels)
3
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
LEGENDS AND NOTES
Legend
Bhp = Brake Horsepower
Bels
-Sound Levels
EER
-Energy Efficiency Ratio
IPLV
-Integrated Part Load Values
MCA -Minimum Circuit Amps
MOCP -Maximum Over--current Protection
FLA
-Full Load Amps
LRA
-Locked Rotor Amps
*
-Fuse or HACR circuit breaker
RLA
-Rated Load Amps
N 1. Rated in accordance with ARI Standards 360--89 and
NOTES:
270--89.
2. The CHS is beyond the scope of the ARI Certification
Program.
3. ARI ratings are net values, reflecting the effects of circulating
fan heat.
4. Ratings are based on:
Cooling Standard: 80F db, 67F wb indoor entering air
temperture and 95F db air entering outdoor unit.
IPLV Standard: 80F db, 67F wb indoor entering air temperture
and 80F db entering air temperature.
EXAMPLE:
Supply voltage is 460--3--60.
AB = 452 v
BC = 464 v
AC = 455 v
Average Voltage =
=
NOTES:
1. In compliance with NEC requirements for multimotor and combina-tion load equipment (refer to NEC Articles 430 and 440), the over-current protective device for the unit shall be fuse or HACR breaker .
Canadian units may be fuse or circuit breaker .
2. Unbalanced 3--Phase Supply Voltage
Never operate a motor where a phase imbalance in supply voltage is
greater than 2%. Use the following formula to determine the percent
voltage imbalance.
% Voltage Imbalance
= 100 x
maximum
Maximum
deviation is 7 v.
Determine
percent voltage imbalance.
% Voltage Imbalance
max voltage deviation from average voltage
average voltage
1371
3
3
= 457
deviation from average voltage.
Determine
(AB) 457 -- 452 = 5 V
(BC) 464 -- 457 = 7 V
(AB) 457 -- 455 = 2 V
452 + 464 + 455
= 100 x
7
457
= 1.53%
This amount of phase imbalance
maximum allowable 2%.
is satisfactory
as it is below the
IMPORTANT : If the supply voltage phase imbalance is more than
2%, contact your local electric utility company immediately .
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
4
CHS180 UNIT DIMENSIONS and CLEARANCES
39--1/2”
Unit
CHS180
76--1/4”
Support Point
Total Weight 1
2
3
4
803
158 243 244 158
(365)
(72) (110) (111) (72)
NOTE: Recommended service clearances are as follows
(local codes or jurisdictions may prevail):
Side (compressor) -- 3--1/2 ft. (1067 mm)
Side (opposidte compressor) -- 3 ft. (914 mm)
Ends -- 2 ft. (616 mm)
Top -- 5 ft. (1524 mm)
18”
74--1/4”
43”
39--7/8”
28--13/16”
36--1/16”
27--15/16”
5
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
EXPANDED PERFORMANCE DATA (COOLING) CHS180 / BHC/HBC180 (GROSS CAPACITY)
Temp (F)
Air Ent Outdoor Coil
(Edb)
TC
80
SHC
kW
TC
85
SHC
kW
TC
95
SHC
kW
TC
100
SHC
kW
TC
105
SHC
kW
TC
115
SHC
kW
TC
125
SHC
kW
BF
Edb
Ewb
kW
Ldb
Lwb
SHC
TC
—
—
—
—
—
—
—
—
4500/0.03
62
172.0
152.0
13.7
168.0
150.0
14.3
161.0
146.0
15.5
158.0
145.0
16.1
154.0
143.0
16.7
147.0
139.0
17.9
139.0
135.0
19.1
67
186.0
127.0
14.2
182.0
125.0
14.9
174.0
122.0
16.1
170.0
121.0
16.8
166.0
119.0
17.4
158.0
116.0
18.6
150.0
112.0
19.8
72
201.0
101.0
14.7
197.0
100.0
15.4
189.0
96.9
16.8
184.0
95.3
17.4
180.0
93.8
18.1
172.0
90.7
19.4
163.0
87.5
20.7
Indoor Entering Air - Cfm/BF
6000/0.05
Indoor Entering Air -- Ewb (F)
62
67
72
181.0
194.0
209.0
175.0
146.0
113.0
14.1
14.5
15.0
178.0
190.0
205.0
173.0
144.0
111.0
14.7
15.1
15.7
171.0
182.0
196.0
169.0
141.0
108.0
16.0
16.5
17.1
167.0
177.0
191.0
166.0
139.0
107.0
16.6
17.1
17.7
163.0
173.0
187.0
163.0
137.0
105.0
17.2
17.7
18.4
156.0
165.0
177.0
156.0
134.0
102.0
18.5
19.0
19.8
149.0
156.0
168.0
149.0
131.0
98.8
19.8
20.2
21.1
tldb = tedb –
ENTERING-AIR DRY-BULB TEMP (F)
78
77
76
75
under 75
82
83
84
85
over 85
Correction Factor
1.07 2.13 3.20 4.27 5.34
1.03 2.07 3.10 4.14 5.17 Use formula
1.00 2.00 3.00 4.00 5.01
given.
0.97 1.94 2.90 3.87 4.84
0.94 1.87 2.81 3.74 4.68
79
81
Interpolation is permissible.
Correction Factor = 1.10 x (1 – BF) x (db – 80)
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
67
199.0
163.0
14.7
195.0
161.0
15.3
186.0
158.0
16.7
182.0
156.0
17.3
178.0
154.0
18.0
169.0
151.0
19.2
160.0
147.0
20.5
72
214.0
123.0
15.1
209.0
122.0
15.8
200.0
119.0
17.2
185.0
117.0
17.9
191.0
116.0
18.6
181.0
113.0
20.0
171.0
109.0
21.3
sensible heat capacity (Btuh)
1.1 x cfm
tlwb = wet-bulb temperature corresponding to
enthalpy of air leaving indoor coil (hlwb)
total capacity (Btuh)
hlwb = hewb –
4.5 x cfm
where hewb = enthalpy of air entering indoor coil
4. Capacities are based on 25 actual ft (40 equivalent ft) of interconnecting piping
sized to the outdoor unit field connections. (Equivalent length is equal to the
actual length plus a 50% allowance for fitting losses.) For other equivalent
lengths, refer to the Carrier System Design Manual, Part 3, for line losses.
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. SHC is based on 80 F db air entering indoor coil.
Below 80 F db, subtract (Corr Factor x Cfm) from SHC.
Above 80 F db, add (Corr Factor x Cfm) to SHC.
0.03
0.06
0.09
0.12
0.15
62
190.0
190.0
14.3
186.0
186.0
15.0
179.0
179.0
16.4
176.0
176.0
17.0
172.0
172.0
17.7
165.0
165.0
19.0
157.0
157.0
20.3
3. Formulas:
LEGEND
Bypass Factor
Entering Dry Bulb
Entering Wet Bulb
Compressor Motor Power Input, Total
Leaving Dry Bulb
Leaving Wet Bulb
Sensible Heat Capacity, Gross (1000 Btuh)
Total Capacity, Gross (1000 Btuh)
BYPASS
FACTOR
7500/0.08
6
NET CAPACITIES HEATING - CHS180 WITH BHC/HBC180
Temp (F) Air
Ent Indoor
Coil
60
- 10
0
10
17
20
30
40
47
50
60
64.4
80.9
99.0
112.0
118.0
137.0
161.0
177.0
184.0
207.0
4500
THI
59.2
74.5
90.5
102.0
106.0
120.0
154.0
177.0
184.0
207.0
kW
7.18
7.99
8.87
9.49
9.78
10.80
12.00
12.80
13.20
14.40
TH
67.3
84.1
103.0
115.0
121.0
142.0
166.0
182.0
190.0
214.0
THI
61.9
77.4
93.8
105.0
110.0
124.0
158.0
182.0
190.0
214.0
kW
7.09
7.85
8.65
9.22
9.48
10.40
11.40
12.20
12.50
13.60
TH
69.7
86.7
105.0
118.0
124.0
144.0
169.0
186.0
193.0
218.0
THI
64.1
79.7
96.2
108.0
112.0
127.0
162.0
186.0
193.0
218.0
kW
7.03
7.76
8.51
9.04
9.29
10.10
11.10
11.80
12.10
13.10
TH
61.5
78.2
96.4
109.0
115.0
135.0
158.0
174.0
181.0
205.0
THI
56.6
72.0
88.1
99.5
104.0
118.0
151.0
174.0
181.0
205.0
kW
7.37
8.22
9.14
9.79
10.10
11.10
12.30
13.20
13.60
14.80
TH
64.4
81.5
100.0
113.0
119.0
139.0
163.0
180.0
187.0
211.0
THI
59.3
75.0
91.5
103.0
107.0
122.0
156.0
180.0
187.0
211.0
kW
7.29
8.08
8.93
9.53
9.80
10.70
11.80
12.60
12.90
14.10
6000
7500
4500
65
6000
7500
4500
70
6000
7500
4500
75
TEMP AIR ENTERING OUTDOOR COIL (F)
Indoor Airflow
(Cfm)
TH
6000
7500
TH
66.8
84.1
103.0
116.0
122.0
142.0
167.0
184.0
191.0
215.0
THI
61.5
77.4
94.0
106.0
110.0
125.0
159.0
184.0
191.0
215.0
kW
7.23
8.00
8.80
9.36
9.61
10.50
11.50
12.20
12.50
13.60
TH
58.2
75.3
93.6
106.0
112.0
132.0
155.0
172.0
179.0
202.0
THI
53.6
69.3
85.6
97.0
101.0
116.0
149.0
172.0
179.0
202.0
kW
7.56
8.45
9.41
10.10
10.40
11.50
12.70
13.60
14.00
15.30
TH
61.2
78.6
97.3
110.0
116.0
137.0
161.0
177.0
184.0
208.0
THI
56.3
72.3
89.0
101.0
105.0
120.0
154.0
177.0
184.0
208.0
kW
7.48
8.32
9.21
9.83
10.10
11.10
12.20
13.00
13.40
14.50
TH
63.7
81.2
100.0
113.0
119.0
140.0
164.0
181.0
188.0
212.0
THI
58.6
74.7
91.5
103.0
108.0
123.0
157.0
181.0
188.0
212.0
kW
7.43
8.23
9.08
9.67
9.94
10.80
11.90
12.70
13.00
14.10
TH
54.7
72.1
90.5
103.0
109.0
129.0
153.0
169.0
176.0
199.0
THI
50.3
66.3
82.8
94.3
98.7
113.0
146.0
169.0
176.0
199.0
kW
7.75
8.68
9.68
10.40
10.70
11.80
13.10
14.10
14.50
15.80
TH
57.7
75.4
94.3
108.0
114.0
134.0
158.0
175.0
182.0
206.0
THI
53.1
69.4
86.3
98.1
102.0
117.0
151.0
175.0
182.0
206.0
kW
7.68
8.55
9.48
10.10
10.40
11.40
12.60
13.50
13.80
15.0
TH
60.1
78.1
97.2
111.0
117.0
137.0
161.0
178.0
186.0
210.0
THI
55.3
71.8
88.9
101.0
105.0
120.0
154.0
178.0
186.0
210.0
kW
7.63
8.47
9.36
9.98
10.30
11.20
12.30
13.10
13.40
14.50
LEGEND
kW -- Compressor motor Power Input (Total)
TH -- Total Heating Capacity (1000 Btuh)
THI -- Integrated Heating Capacity (1000 Btuh)
7
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Typical Piping and Wiring
BHC/HBC180
Air Handler
LEGEND
NEC -- National Electric Code
TXV -- Thermostatic Expansion Valve
NOTES:
1. All piping must follow standard refrigerant piping techniques.
2. All wiring must comply with applicable local and national codes.
3. Wiring and piping shown are general points--of--connection guides only
and are not intended for, or to include all details for a specific installation.
4. Filter driers must be bi--flow type suited for heat pump duty.
5. Internal factory--supplied TXV’s and check valves not shown.
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
8
ACCESSORIES
Description
Model Number
Used On
AXB175LAA
208/230 Volt
AXB275LAA
460 Volt
Hail Guard
AXB075HGA
ALL
Coil Guard
AXB075CGA
ALL
Low Ambient Control
OPERATING SEQUENCE
GUIDE SPECIFICATIONS: CHS180
Sequence of operation -- CHS180 outdoor unit with BHC/HBC180
indoor unit. Assume the power is on and the thermostat is set at
SYSTEM AUTO, FAN AUTO, and desired temperature.
Cooling -- If power to unit has been off for an extended period of time,
energize crankcase heater at least 24 hours prior to starting
compressor.
The indoor fans, outdoor fans, and compressor start within 5 minutes
(due to compressor time delay) on command from the controlling
thermostat in either the Cooling or the Heating mode of operation.
When first stage cooling is required, thermostat (TC1) closes, causing
the heat pump to start with an unloaded compressor. When TC2
closes, demanding additional cooling, the compressor loads. In a
system with a one--stage thermostat, the unit may be wired so the
compressor starts fully loaded. The RVS (reversing valve solenoid) is
deenergized during Cooling mode operation.
Heating -First stage -- When the thermostat (TH1) calls for heating, the
indoor--fan motor, outdoor--fan motors, and the compressor (fully
loaded) are energized. The RVS is energized in the heating mode.
Second stage -- If additional heating is required, TH2 on the
thermostat closes, causing the auxiliary heat supply (i.e., electric
resistance heat) to be energized in 1 or 2 stages depending on the
number of stages available and whether the outdoor thermostats are
closed.
Defrost Cycle -- Defrost is initiated by a timer which may be set to 30,
50, or 90 minutes. The cycle begins when the defrost timer motor
contacts close for 20 seconds. If the defrost thermostat is closed, the
reversing valve and outdoor--air fans are deenergized. The unit
operates on this modified Cooling mode to defrost the coil. The defrost
cycle continues until the defrost thermostat or defrost high pressure
switch opens or 10 minutes have elapsed.
When the unit is in the defrost cycle, electric resistance heat is
energized to prevent cold air recirculation during this modified Cooling
mode.
Air Circulation -- When the fan switch is at FAN ON, the indoor--air
fans operate continuously to provide ventilation. The thermostat
operates the other components as described above.
Emergency Heat Cycle -- If the compressor isinoperative due to a
tripped safety device, the second stage of the thermostat
automatically energizes the indoor--air fan and the electric resistance
heaters.
If desired, the compressor can be manually locked out by setting the
thermostat for emergency heat. In this instance, the emergency heat
indicator light on the thermostat assembly is illuminated.
SYSTEM DESCRIPTION:
Outdoor--mounted, electrically controlled, air--cooled split system
heat pump unit utilizing a semi--hermetic compressor for refrigerant
compression. Unit shall function as the outdoor component of an
air--to--air electric heat pump system. Unit can be used in a refrigerant
circuit to match Packaged Air Handling Unit(s), for matched systems
approved by manufacturer.
CABINET:
Cabinet shall be constructed of galvanized steel, bonderized, and
finished with baked enamel. Fan venturi housings and guards shall be
assembled on the unit.
A removable panel or hinged door shall be provided for access to the
compressor and control compartments. A refrigerant accumulator
with a fusible plug relief shall be installed in the cabinet.
COILS:
Coil shall have copper tubes, aluminum plate fins (copper fins
optional), and galvanized steel tube sheets. The fins shall be bonded
to tubes by mechanical expansion. Coil shall be circuited for
subcooling during Cooling mode operation.
CONDENSER FAN:
Propeller fans shall be directly driven by weather--proof motors. Fan
motor bearings shall be permanently lubricated. The lead fan motor
shall be suitable for application with accessory head pressure control.
Fans shall be arranged for vertical up blast discharge.
COMPRESSOR
Semi--hermetic, reciprocating--type compressor shall be complete
with a motor and oil pump all on a single polished crankshaft. Motor
stator winding shall be NEMA Class F rated, suitable for operation in a
refrigerant atmosphere.
Oil pump shall be automatically reversible.
Casing shall include suction and discharge shut--off valves, capacity
control device, oil level control orifice, oil--pressure regulating valve,
and a crankcase oil heater.
Suction and discharge valves shall be Swedish steel, reed--type
flapper valves.
Pistons and connecting rods shall be high--density aluminum alloy
castings. Pistons shall be equipped with automotive--type
compression and oil scraper rings.
Pump--end bearing shall be cast aluminum. Motor--end bearing shall
be steel--backed, tin--base babbit type. Compressor assembly shall
be installed on spring vibration isolators.
9
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
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