York | H3CE120 | 550.23-TG3Y (1100)

550.23-TG3Y (1100)
®
SPLIT-SYSTEM
AIR-COOLED
CONDENSING UNITS
O
O
O
H3CE180 & 240
15 AND 20 NOMINAL TONS
DESCRIPTION
These outdoor condensing units are completely assembled,
piped and wired at the factory to provide one-piece shipment
and rigging. Each unit is pressurized with a holding charge of
refrigerant-22 for storage and/or shipping.
The compact design, clean styling, and quiet operation make
these condensing units suitable for almost any outdoor location.
On rooftops . . . because they weigh much less than a single
package unit of similar capacity and are much easier to rig and
support. At ground level . . . because their ample sub-cooling
capacity allows them to be located 18 meters (60 feet) below
the evaporator coil.
All sheet metal parts are constructed of commercial grade
(G90) galvanized steel. Before painting, each part is thoroughly
cleaned to remove any grease or dirt from its surfaces. The
external parts are then coated a “desert sand” powder paint to
assure a quality finish for many years. This coating system has
passed the 750 hour, salt spray test per ASTM Standard B117.
All models include a 1-year limited warranty on the complete
unit. The compressor carries an additional 4-year warranty.
A matching line of Evaporator Blower units is also offered to
meet your precise capacity and air handling requirements.
FEATURES
• Condenser coil constructed of rifled copper tubes and
•
•
louvered aluminum fins for durability and long lasting
efficient operation.
Permanently attached base rails with fork lift slots and lifting
holes. This design allows for 3-way fork lift access and
overhead rigging.
Both high and low pressure controls.
• Solid state motor protection to prevent the compressor from
operating at an unsafe condition.
• Ball bearing condenser fan motors with 5/8 inch shafts.
• Color-coded power and control wiring for easier service and
troubleshooting.
• Anti-short cycle timer to protect the compressor.
• A lockout circuit to prevent the unit from cycling on safety
control.
• A 24-volt temperature control circuit.
• Standard unit low ambient operation to (35°F).
• A filter-drier (shipped in the unit’s compressor
compartment for field installation near the evaporator coil).
• Service valves with a back-seating access port for pressure
•
•
•
•
testing the system. Copper stub-outs are factory mounted
on the suction and liquid service valves to simplify the field
piping connections.
Separate panel for easy access to the control box without
affecting air flow across the condenser coil.
Exterior access to service pressure port connections.
Packaging suitable for outdoor storage.
An optional Phenolic coating is available where the
condenser coils are fully dipped in a phenolic coating
process to provide longer life in corrosive conditions.
550.23-TG3Y
TABLE OF CONTENTS
Description ........................................................................... 1
Features ............................................................................... 1
ARI Ratings .......................................................................... 2
Unit Application Data ........................................................... 2
Physical Data ....................................................................... 2
Electrical Data...................................................................... 2
Field-Installed Accessories .................................................. 2
Unit Dimensions & Clearances ............................................ 3
Unit Cooling Capacities & Power Requirements..................3
System Cooling Capacities & Power Requirements ............4
Field Wiring...........................................................................6
Suction Line Data .................................................................7
Liquid Line Data....................................................................7
Refrigerant-22 Line Charge..................................................7
Sequence Of Operation........................................................7
Guide Specification ..............................................................9
ARI RATINGS1
UNIT APPLICATION DATA
208/230-3-60
460-3-60
575-3-60
Ambient Air on Condenser Coil
Min. / Max.
Ambient Air on Condenser Coil
Min. / Max. with Head Pressure Control
187 / 252
432 / 504
540 / 630
Voltage Variation1
Min. / Max.
35°F2 / 115°F
0 - 115°F
1 Utilization range “A” in accordance with ARI Standard 110.
2. The minimum allowed ambient temperature for mechanical cooling without the head pressure control accessory installed must be raised if the indoor air flow is less than the minimum
value given in the capacity tables.
PART LOAD CAPACITY & EFFICIENCY
PHYSICAL DATA
Model
Size
(Mbh)
180
240
Condenser
Compressor1
Rating
Cap.
(Tons) (Stg’s.)
15
20
2
24" Fan (Propeller)
Qty.
2
2
2
2
Fan Motor
Blades/
Nom.
Pitch
CFM
(Deg.)
3/32 10,800
3/32 11,300
Unit Weight
(Lbs.)
Coil
Qty.
HP
RPM
Rotation
2
2
1
1
1100
1100
CCWLE
CCWLE
Fins
per
inch
20
20
Rows
Deep
Ship.
2
2
920
970
Charge,
(Refrigerant-22)
Lbs.-Oz.
Oper. Holding3 Oper.4
930
990
2-0
2-0
24 - 12
32 - 13
1
Compressor set consists of two Copeland scroll compressors manifolded into a single refrigerant circuit.
2
The ball bearing, 48 frame, single phase condenser fan motor have internal protection are directly connected to the condenser fans.
Motor rotation is counterclockwise when viewing the lead end,which is opposite the shaft end.
3
Holding charge is the amount in the unit as shipped from the factory.
4
Operating refrigerant charge is for the condensing unit and the matching York air handler, but does not include the charge in the interconnecting piping.
See the Refrigerant Line Charge Table to determine the additional refrigerant charge required for interconnecting piping.
ELECTRICAL DATA
Compressor
Model
H3CE180A25
H3CE180A46
H3CE180A58
H3CE240A25
H3CE240A46
H3CE240A58
Condenser Fan Motor
Unit Power
Supply
Qty
RLA
LRA
Qty
HP
FLA
208/230/3/60
460/3/60
575/3/60
208/230/3/60
460/3/60
575/3/60
2
2
2
2
2
2
26.4
13.9
10.1
37.4
18.4
15.2
189
94
74
278
127
100
2
2
2
2
2
2
1
1
1
1
1
1
5.0
2.6
2.0
5.0
2.6
2.0
Unit
Minimum Maximum Minimum
Fuse
Disconnect
Circuit
Ampacity
Size1
Size2
(Amps)
(Amps)
(Amps)
69.4
90
100
36.5
50
60
26.7
35
30
94.2
125
100
46.6
60
60
38.2
50
60
1. Dual element, time delay type.
2. Refer to NEC/NFPA No. 70, Articles 440-11,12 for information on minimum disconnect sizing.
3. The 208-230 V compressors and motors use a single tap for the entire range of voltages. The 208/230 V to 24 V transformers
have different taps for 208 and 230 V.
FIELD-INSTALLED ACCESSORIES
• 0°F LOW AMBIENT - A single phase condenser fan motor and head pressure control to reduce its speed maintain stable system
operation at ambient temperatures down to 0°F.
• Coil Guard - A decorative coil guard provides an additional level of protection for the condenser co ils.
2
Unitary Products Group
550.23-TG3Y
UNIT DIMENSIONS & CLEARANCES
C O M P R E S S O R A N D
F A N M O T O R A C C E S S
E X T E R N A L P R E S S U R E
G A U G E F IT T IN G S
F A N M O T O R
A C C E S S
A IR
O U T
A IR
O U T
C O N T R O L B O X
A C C E S S
All dimensions are in inches. They are
subject to change without notice. Certified
dimensions will be provided upon request.
F
A IR
IN
F
O
E
E
O
A
F
O
C
B
D
2 4 -1 /2
1 2 -1 /8
3 9 - 7 /8
1 3 -1 /4
3 0 -3 /4
7 -1 /3 2
4 4 -9 /3 2
5 -3 /4
Connection
Entry
Suction Line
Liquid Line
Power Wiring
Control Wiring
Accessory Wiring
Accessory Wiring
A
B
C
D
E
F
Connection Size
15 Ton
20 Ton
1-5/8 ID
2-1/8 ID
5/8 ID
5/8 ID
2-1/8 KO 2-1/8KO
7/8 KO
7/8 KO
7/8 KO
7/8 KO
1-3/8 KO 1-3/8 KO
7 6 -7 /8
9 -1 /3 2
CLEARANCES
A P P R O X IM A T E
C E N T E R O F G R A V IT Y
B A C K
(C O IL E N D )
B
7 6 - 7 /8
Unit
15 Ton
20 Ton
Dim. (in.)
A
B
16
32
16
32
A
3 9 - 7 /8
F R O N T
CENTER OF GRAVITY
Overhead (Top)1
Front
(Piping and Access Panels)
Left Side
Right Side
Rear
Bottom2
120"
30"
24"
24"
24"
0"
1Units must be installed outdoors. Overhanging structures or
shrubs should not obstruct condenser air discharge.
2
Adequate snow clearance must be provided if winter operation
is expected.
CONDENSING UNIT ONLY COOLING CAPACITIES AND POWER REQUIREMENTS
Compressor Suction
Model
180
240
65
Pressure Saturated
(psig) Temp (°F) MBH1
54.9
30
165
61.6
35
181
68.5
40
196
76.0
45
212
84.0
50
231
54.9
30
228
61.6
35
248
68.5
40
269
76.0
45
291
84.0
50
313
Ambient Temperature Entering Condenser Coil (°F)
75
85
95
105
115
kW 2 MBH kW MBH kW MBH kW MBH kW MBH kW
12.3 157 13.4 150 14.8 142 16.3 134 18.1 126 19.9
12.5 172 13.6 164 15.0 156 16.5 147 18.3 138 20.2
12.7 188 13.9 179 15.3 170 16.7 160 18.6 151 20.4
12.9 204 14.1 194 15.5 184 17.0 174 18.9 164 20.8
13.2 220 14.3 210 15.8 199 17.3 188 19.1 177 21.0
17.3 217 19.2 206 21.1 195 23.4 183 25.9 172 28.5
17.7 237 19.6 225 21.5 213 23.8 200 26.4 188 29.0
18.1 257
20
244 21.9 231 24.3 218 26.9 204 29.6
18.5 277 20.5 264 22.4 250 24.8 236 27.5 222 30.3
19.0 299
21
284 23.0 269 25.3 254 28.1 239 30.9
1. Capacities are gross ratings.
2. Power is for the condensing unit only.
Unitary Products Group
3
550.23-TG3Y
SYSTEM GROSS COOLING CAPACITIES AND POWER REQUIREMENTS
H3CE180 WITH K3EU180
85 °F Air Entering Condenser
Air Ent.
Power Air Temperature Entering Evaporator, Dry Bulb
Evaporator Input
86
80
74
68
CFM WB kW Total Sens Total Sens Total Sens Total Sens
72 15.6 205 154 204 115 201
77
7200 67 15.4 197 188 191 149 188 110 185
71
62 15.3 197 197 183 182 176 144 174 106
57 15.3 197 197 182 182 172 172 163 140
72 15.5 203 148 202 112 199
75
6600 67 15.4 193 180 189 143 187 108 184
70
62 15.2 193 193 181 174 174 139 172 103
57 15.2 193 193 181 181 169 169 160 134
72 15.5 201 142 200 108 197
74
6000 67 15.3 189 172 187 137 185 105 182
69
62 15.2 188 188 177 168 172 134 170 101
57 15.2 188 188 177 177 164 162 158 129
72 15.5 199 135 197 105 195
72
5400 67 15.3 186 163 184 131 182 101 180
68
62 15.1 183 183 173 160 170 128 168
98
57 15.1 183 183 172 172 160 155 156 124
72 15.4 196 129 194 101 192
71
4800 67 15.2 183 154 181 125 179
98
177
67
62 15.0 177 177 169 150 166 122 165
95
57 15.0 177 177 166 166 156 147 153 118
95 °F Air Entering Condenser
Power Air Temperature Entering Evaporator, Dry Bulb
Input
86
80
74
68
Total Sens Total Sens Total Sens Total Sens
kW
17.2
198
151
196
112
193
74
16.9
191
185
183
145
182
108
179
68
16.9
191
191
179
179
170
142
168
103
16.9
191
191
179
179
167
167
157
136
17.2
196
145
194
109
192
73
16.9
187
177
182
140
180
105
177
67
16.8
187
187
175
172
168
136
166
100
16.8
187
187
175
175
164
164
155
132
17.1
194
139
192
106
190
71
16.9
184
170
180
134
178
102
175
66
16.8
183
183
171
164
166
131
164
98
16.8
183
183
171
171
159
158
152
126
17.1
192
133
190
102
188
70
16.9
180
160
178
129
176
99
173
66
16.7
178
178
167
156
163
125
162
95
16.7
178
178
167
167
155
152
150
121
17.0
189
126
187
98
185
68
16.8
177
151
175
122
173
95
170
65
16.6
172
172
163
147
160
119
159
92
16.6
172
172
161
161
151
143
147
115
105 °F Air Entering Condenser
115 °F Air Entering Condenser
Air Ent.
Power Air Temperature Entering Evaporator, Dry Bulb
Power Air Temperature Entering Evaporator, Dry Bulb
Evaporator Input
86
80
74
68
Input
86
80
74
68
CFM WB kW Total Sens Total Sens Total Sens Total Sens
kW
Total Sens Total Sens Total Sens Total
72 19.0 190 148 188 109 185 72
21.0
182
146
180
106
177
69
7200 67 18.7 184 181 176 142 174 104 171 65
20.8
177
177
169
140
166
101
163
62 18.7 184 184 172 172 163 139 161 100
20.7
177
177
166
166
156
135
153
57 18.7 184 184 172 172 161 161 151 133
20.7
177
177
166
166
155
155
144
72 19.0 188 142 186 106 184 70
21.0
180
139
178
103
175
67
6600 67 18.7 180 173 175 137 172 102 170 65
20.7
173
170
167
134
165
98
162
62 18.6 180 181 169 167 161 133 159 97
20.6
173
173
163
163
155
130
152
57 18.6 180 181 169 169 158 158 149 129
20.6
173
173
163
163
152
152
142
72 18.9 186 136 184 102 182 69
21.0
178
133
176
99
174
66
6000 67 18.7 177 166 173 131 171 99
168 64
20.7
170
162
165
128
163
95
161
62 18.6 176 176 165 161 159 128 158 95
20.6
170
170
159
157
152
124
151
57 18.6 176 176 165 166 155 155 146 123
20.6
170
170
159
159
149
149
141
72 18.9 184 129 183 99
180 67
20.9
176
127
175
96
172
65
5400 67 18.6 173 157 171 125 169 96
166 63
20.6
167
154
163
122
161
92
159
62 18.5 172 172 161 153 157 122 155 92
20.5
166
166
155
149
150
119
149
57 18.5 172 172 161 161 150 148 144 118
20.5
166
166
155
155
144
144
138
72 18.9 181 123 180 96
177 66
20.9
174
120
172
92
170
63
4800 67 18.6 170 148 168 119 166 92
164 62
20.6
163
145
161
116
159
89
157
62 18.4 166 166 157 144 154 116 153 89
20.4
161
161
152
142
148
113
146
57 18.4 166 166 156 156 146 140 142 112
20.4
161
161
151
151
140
138
136
NOTES:
1. Capacities are gross MBH.
2. Temperatures are expressed in °F.
3. Power (kW) is for the condensing unit only and corresponds to 80 °F dry bulb air temperature entering the evaporator.
4. Air handler power is not included.
5. Shaded areas represent dry coil operation.
Sens
63
96
129
62
94
125
61
92
120
60
89
115
59
86
109
All Sensible Capacity
Blower Motor KW x
4
3.415 MBH
= Blower Motor Heat (MBH)
KW
Unitary Products Group
550.23-TG3Y
SYSTEM GROSS COOLING CAPACITIES AND POWER REQUIREMENTS - Cont’d.
H3CE240 WITH L4EU240
Air Ent.
Evaporator
CFM WB
72
9600 67
62
57
72
8800 67
62
57
72
8000 67
62
57
72
7200 67
62
57
72
6400 67
62
57
Power
Input
kW
22.8
22.3
22.2
22.2
22.7
22.3
22.0
22.0
22.6
22.2
21.9
21.9
22.5
22.1
21.7
21.7
22.4
22.0
21.6
21.6
85 °F Air Entering Condenser
Air Temperature Entering Evaporator, Dry Bulb
86
80
74
68
Total Sens Total Sens Total Sens Total Sens
279 204 277 153 273 104
265 251 259 197 257 148 252 96
265 265 248 245 240 192 237 142
265 265 248 248 237 237 221 185
277 196 274 149 270 102
261 240 257 190 254 144 250 95
261 261 243 234 237 185 235 138
261 261 243 243 232 232 218 179
274 188 271 144 267 100
257 229 254 182 251 140 247 93
257 257 239 224 234 178 232 135
257 257 239 239 221 216 216 173
270 180 268 140 264 98
253 218 250 175 247 136 244 92
250 250 234 213 230 171 228 131
250 250 234 234 217 207 212 166
266 171 263 135 260 96
247 205 246 167 243 131 240 91
242 242 229 202 226 163 224 127
242 242 227 227 211 196 208 159
95 °F Air Entering Condenser
Power Air Temperature Entering Evaporator, Dry Bulb
Input
86
80
74
68
kW
Total Sens Total Sens Total Sens Total Sens
25.2
268 200 266 149 262 100
24.8
255 246 249 193 246 143 242
92
24.7
255 255 244 244 230 187 227 137
24.6
255 255 244 244 229 229 212 181
25.1
266 192 264 145 259
98
24.7
252 237 247 186 244 140 240
91
24.5
252 252 235 231 228 181 225 134
24.5
252 252 235 235 224 224 210 174
25.1
263 184 261 141 257
96
24.6
247 225 244 179 241 136 237
90
24.4
247 247 230 220 225 174 223 130
24.4
247 247 230 230 215 213 207 169
25.0
260 176 257 136 254
94
24.5
243 214 241 171 238 132 234
89
24.2
242 242 225 208 222 167 219 127
24.2
242 242 225 225 209 203 204 162
24.9
256 168 253 131 250
92
24.4
239 202 237 163 234 127 230
87
24.0
234 234 220 197 218 160 215 123
24.0
234 234 220 220 203 192 200 155
105 °F Air Entering Condenser
115 °F Air Entering Condenser
Air Ent.
Power Air Temperature Entering Evaporator, Dry Bulb
Power Air Temperature Entering Evaporator, Dry Bulb
Evaporator Input
86
80
74
68
Input
86
80
74
68
CFM WB kW Total Sens Total Sens Total Sens Total Sens
kW
Total Sens Total Sens Total Sens Total Sens
72 27.9 257 196 255 145 250 96
31.0
245 191 243 141 238
93
9600 67 27.4 246 242 239 189 236 139 231 88
30.4
241 241 228 185 225 134 220
84
62 27.4 246 246 235 235 220 183 218 132
30.4
241 241 226 226 210 179 207 128
57 27.4 246 246 235 235 220 220 203 176
30.4
241 241 226 226 210 210 194 172
72 27.9 255 188 252 141 248 94
30.9
243 184 241 136 237
91
8800 67 27.4 242 232 237 182 234 135 229 87
30.3
232 227 226 178 223 131 219
83
62 27.2 242 242 231 231 218 176 216 129
30.2
232 232 221 221 208 172 206 125
57 27.2 242 242 231 231 216 216 201 170
30.2
232 232 221 221 207 207 192 166
72 27.8 252 180 250 136 246 92
30.8
241 177 238 132 234
89
8000 67 27.3 238 221 234 174 231 131 227 86
30.3
228 217 223 170 220 127 216
82
62 27.1 238 238 221 214 215 169 213 126
30.1
228 228 217 217 206 165 203 122
57 27.1 238 238 221 221 211 211 198 164
30.1
228 228 217 217 203 203 189 159
72 27.7 249 172 247 132 243 90
30.7
238 168 235 128 232
87
7200 67 27.2 234 210 231 166 228 127 224 85
30.2
223 205 220 162 218 123 214
81
62 26.9 234 234 217 204 212 162 210 123
29.9
223 223 208 199 203 158 201 118
57 26.9 234 234 217 217 202 199 195 157
29.9
223 223 211 211 198 198 187 152
72 27.6 245 163 243 127 239 88
30.6
234 159 232 123 229
85
6400 67 27.1 229 197 227 159 224 123 221 84
30.1
219 193 217 154 214 119 211
80
62 26.7 226 226 211 192 209 155 207 119
29.7
218 218 202 187 199 150 197 114
57 26.7 226 226 211 211 196 188 192 150
29.7
218 218 202 202 188 182 183 146
NOTES:
1. Capacities are gross MBH.
2. Temperatures are expressed in °F.
3. Power (kW) is for the condensing unit only and corresponds to 80 °F dry bulb air temperature entering the evaporator.
4. Air handler power is not included.
5. Shaded areas represent dry coil operation.
All Sensible Capacity
Blower Motor KW x
Unitary Products Group
3.415 MBH
= Blower Motor Heat (MBH)
KW
5
550.23-TG3Y
FIELD WIRING
H 3 C E 1 8 0 /K 4 E U 1 8 0
3 -P H A S E
L IN E V O L T A G E
P O W E R S U P P L Y
3 -P H A S E
L IN E V O L T A G E
P O W E R S U P P L Y
D IS C O N N E C T S W IT C H E S
A N D F U S IN G B Y F IE L D
G R O U N D L U G (F O R
G R O U N D W IR E
IF R E Q U IR E D )
L 1
L 2
L 3
T B 1
C O N D .
S E C T IO N
T B 4
R
Y 1
X
Y 2
B
E V A P O R A T O R
B L O W E R M O T O R
C O N T A C T O R
2 4 V
L
C O M P R E S S O R 2 4 V
L O C K O U T S IG N A L
2 V A M A X .
R C
Y 2
Y 1
G
T H E R M O S T A T
2 T H 0 4 7 0 1 2 2 4
H 3 C E 2 4 0 /L 4 E U 2 4 0
3 -P H A S E
L IN E V O L T A G E
P O W E R S U P P L Y
D IS C O N N E C T S W IT C H E S
A N D F U S IN G B Y F IE L D
L IQ U ID L IN E
S O L E N O ID V A L V E S
G R O U N D L U G (F O R
G R O U N D W IR E
IF R E Q U IR E D )
L 1
L 2
L 3
T B 1
C
C O N D .
S E C T IO N
X
1
1
2
T B 4
R
3 -P H A S E
L IN E V O L T A G E
P O W E R S U P P L Y
Y 1
B
2
Y 2
E V A P O R A T O R
B L O W E R M O T O R
C O N T A C T O R
2 4 V
L
C O M P R E S S O R 2 4 V
L O C K O U T S IG N A L
2 V A M A X .
W IR E IN A C C O R D A N C E W IT H A L L L O C A L
A N D N A T IO N A L E L E C T R IC A L C O D E S .
R C
Y 2
Y 1
G
T H E R M O S T A T
2 T H 0 4 7 0 1 2 2 4
6
L O W
L IN E
F IE L D
V O L T A G E
V O L T A G E
W IR IN G :
C L A S S 2
C L A S S 1
N O T E :
2
S O L E N O ID M A Y N O T
P R E S E N T O N N E W E R
A IR H A N D L E R S .
B E
W IR IN G
W IR IN G
Unitary Products Group
550.23-TG3Y
SUCTION LINE DATA1,2
Nominal Capacity
(Tons)
Refrigerant
Flow Rate3
(Lbs./Min.)
15
45
8-1/2
25.5
Full
Capacity
20
60
Part
Capacity
10
30
Model
Designation
Full
Capacity
Part
Capacity
HCE180
HCE240
Type L
Copper Tubing
(Inches O.D.)
1-5/8
2-1/8
1-5/8
2-1/8
1-5/8
2-1/8
2-5/8
1-5/8
2-1/8
2-5/8
Refrigerant Gas
Velocity
(FT./Min.)
2300
1360
1150
7706
3120
1800
1200
1560
9006
6006
Friction
Loss4,5
(PSI/100 Ft.)
2.5
0.6
0.7
0.2
4.3
1.2
0.4
1.2
0.3
0.1
1All horizontal suction lines should be pitched at least 1 inch every 20 feet in the direction of the refrigerant flow to aid the return of oil to the compressor.
2
Every vertical suction riser greater than 25 feet in height should have a “P” trap at the bottom to facilitate the return of oil to the compressor. Use short radius fittings for these traps.
3
Based on Refrigerant-22 at the nominal capacity of the condensing unit, a suction temperature of 40°F and a liquid temperature of 105°F.
4
Although suction lines should be sized for a friction loss equivalent to a 2°F change in saturation temperature (or approximately 3 psi), sizing the lines for the proper return of oil is more important.
5
These friction losses do not include any allowances for valves or fittings.
6
Since the refrigerant gas velocity may be too low to maintain good oil return up a vertical riser, use the next smaller size. The larger size may be used for horizontal runs for a smaller pressure drop.
REFRIGERANT-22 LINE CHARGE1
LIQUID LINE DATA
Model
Nominal
Capacity
(Tons)
HCE180
15
HCE240
20
Pressure Drop3
Type L
Refrigerant
Flow Rate1 Copper Tubing Friction2
Vertical Rise
(Lbs./Min.) (Inches O.D.) (PSI/100 Ft.)
(PSI/Ft.)
3/4
4.7
45
0.5
7/8
2.2
3/4
8.0
60
0.5
7/8
3.5
1Based on Refrigerant-22 at the nominal capacity of the condensing unit, a liquid temperature of 105°F and a
suction temperature of 40°F.
2
These friction losses do not include any allowances for a strainer, filter-drier, solenoid valve, isolation valve or fittings.
3
The total pressure drop of the liquid line for both friction and vertical rise must not exceed 40 PSI. If the
pressure drop exceeds 40 PSI, the liquid refrigerant could flash before it reaches the expansion valve. This
flashing will not only cause erratic valve operation and poor system performance, but could also damage the
expansion valve.
Liquid Line2
Inches, O.D.
Suction Line2
Inches, O.D.
5/8
7/8
1-5/8
2-1/8
2-5/8
0.113 lb./ft.
0.237 lb./ft.
0.018 lb./ft.
0.031 lb./ft.
0.047 lb./ft.
NOTE: Add the operating charge of the condensing unit, the evaporator
coil and the refrigerant lines to determine the total refrigerant
charge of the system.
1Charges are based on 40°F suction temperature and a 105°F liquid temperature.
2Type “L” copper tubing.
SEQUENCE OF OPERATION
First Stage of Cooling
A call for cooling at terminal Y1 energizes relay RY1. Relay
RY1 closes contacts RY1-1, energizing time delay relay 3TR.
If time delay relay 3TR is satisfied as described below, it will
energize its output terminal Y2, which is connected to
compressor 1 control module terminal M1.
If the compressor 1 control module is satisfied as described
below, it will apply power to terminal 7 of low or high pressure
lock out relay (LOR) contacts. See a description of the LOR
operation below. If the LOR coil is not energized (not locked
out), the LOR contacts will be closed, energizing contactor 1M,
which powers compressor 1 and condenser fan motor 1.
When 1M is energized on H3CE240 units, auxiliary contact
1M-AC2 is closed, powering terminal 1 for opening the stage 1
solenoid in air handlers which feature a stage 1 solenoid.
If the low ambient temperature switch TLA is closed, it will allow
condenser fan 2 contactor 3M to energize. TLA opens as the
temperature falls below 50 F and closes as the ambient rises
above 60 F. TLA is used on the H3CE180, not the H3CE240.
Anti-short Cycle Time Delay Relays 3TR
and 4TR
Relay 3TR, which serves compressor 1 control, has an
adjustable low voltage lock out which is set at 20V in the factory.
The voltage applied to 3TR must be above its lock out setting
and 5 minutes must elapse since the relay was last energized
before it will energize its output terminal Y2. Relay 4TR is
identical but it serves compressor 2 control.
Unitary Products Group
Compressor Control Module
If the compressor control module terminals L1 (or T1) and L2
(or T2) have 24 V applied and the internal compressor
temperature lock out is inactive, the internal switch connecting
M1 and M2 will be closed. M1 to M2 will open if one of the
compressor’s internal temperature sensors exceeds its limit.
M1 to M2 stays open for 30 minutes after a internal temperature
limit is exceeded. The 30 minute lock out may be reset prior to
the 30 minutes expiring by removing power to the control
module terminals L1 and L2. During normal operation, each
compressor control module should always be powered at the
L1 and L2 terminals, whether there is a call for cooling or not.
Low or High Pressure Lock Out Operation
If the lock out circuit path is opened during a call for cooling,
the lock out relay (LOR) coil will energize, opening LOR-1
contacts and disabling all compressor operation. The lock out
circuit path is open if:
• the lock out relay contacts LOR-1 are open, OR
• the low pressure switch LP is open AND the low pressure
switch bypass timer contacts 1TR-1 are open, OR
• the high pressure switch HP is open.
Once the LOR coil has been energized, it remains energized,
locking out cooling operation until the call for cooling has been
removed. When Y1 is returned to 0 volts, the LOR coil is no
longer energized, closing the LOR-1 contacts and removing the
lock out.
7
550.23-TG3Y
The low pressure bypass timer 1TR leaves the 1TR-1 contacts
closed upon the start of a call for cooling until its 90 second
(nominal) timer has expired. This bypasses the low pressure
switch during start up. After the time delay has elapsed, 1TR-1
contacts are opened, once again allowing low pressure to
trigger the lock out circuit if the low pressure switch opens.
During a lock out, the LOR-2 contacts are closed, energizing
the X terminal on the terminal board for lighting a lock out
warning light.
Resetting the Lock Out
The lock out may be reset by:
• Turning the thermostat switch to OFF, or
• Momentarily adjusting the cooling set point to its maximum
allowed value.
If the unit does not resume operation after the anti-short cycle
timer expires or if it continues to lock out after resuming
operation, call a service technician to diagnose and repair the
unit.
8
CAUTION: Repeatedly resetting the lock out may cause
damage to the unit.
Second Stage of Cooling
The second stage of cooling will only be enabled if the first
stage of cooling is on, closing auxiliary contact 1M-AC1. A call
for cooling at terminal Y2 energizes Relay RY2, closing contact
RY2-1, and energizing time delay relay 4TR if contact 1M-AC1
is closed. If time delay relay 4TR is satisfied, it will energize its
output terminal Y2, which is connected to compressor 2 control
module terminal M1.
If the compressor 2 control module is satisfied, it will energize
time delay relay TDR. After 4 seconds, TDR energizes
compressor 2 contactor 2M.When 2M is energized on
H3CE240 units, auxiliary contact 2M-AC1 is closed, powering
terminal 2 for opening the stage 2 solenoid in air handlers which
feature a stage 2 solenoid.
Unitary Products Group
550.23-TG3Y
GUIDE SPECIFICATION - H*CE180 THROUGH 240
I. General
A. Units shall be manufactured in a facility registered under
the ISO 9002 manufacturing quality standard.
B. Units shall be UL listed to US and Canadian safety
standards.
C. Unit shall be packaged to allow outdoor storage.
D. Warranty shall be a full year limited parts warranty on the
complete unit with an additonal 4-year warranty on the
compressor.
E. Unit shall be rated in accordance with ARI 360.
II. Unit Cabinet
V. Refrigeration Components - Refrigeration system
shall contain the following:
• High and low pressure cut-outs
• Suction and liquid line service valves to ease installation
•
•
•
and recovery of refrigerant
External ports to accomodate gauge lines, allowing for easy
servicing
Filter drier shipped in unit for field installation
Holding charge of R-22
VI. Controls - Unit controls shall include:
A. 24 volt control circuit with terminal blocks.
B. Color-coded wiring for easy service and troubleshooting
A. Cabinet shall be constructed of 18 gauge, zinc-coated
steel, finished with a powder paint process capable of
withstanding a minimum of 750 salt spray hours
according to ASTM B117.
B. Cabinet screws shall comply with the ASTM B117 salt
spray test for a minimum of 750 hours.
C. Panels shall be removable for easy access to all internal
components during maintenance and service.
D. Cabinet shall feature a separate access panel for the controls so that unit airflow need not be disturbed during
servicing.
E. Permanently attached base rails shall have 3-way fork lift
access and lifting holes for ease of installation.
III. Compressor
A. Compressors shall be hermetic scroll.
B. Compressor shall feature motor overload protection.
C. A crankcase heater shall keep refrigerant from diluting
the compressor oil in the sump. Crankcase heater shall
be field replaceable without removal of the charge.
C Independent line break thermal protection for the
condenser fans.
D. 5 minute anti-short cycle timer to protect the compressor
from frequent cycling.
E. Unit safety lockouts which automatically reset from the
thermostat once the anti-short cycle timer is satisfied.
Safety lockouts will also generate a 24 volt signal to the
"X" terminal, allowing notification to the user via the
thermostat fault light (if present). These safety lockouts
shall include:
1. High refrigerant pressure
2. Low refrigerant pressure. Low refrigerant pressure shall
be bypassed for the first 120 seconds (approximate) of
operation to eliminate nuisance trips.
F. Compressor motor protection to automatically shutdown
the unit in the event of motor overcurrent or low control
voltage conditions. Unit shall automatically restart after
satisfying the anti-short cycle timer.
G. Low ambient operation down to 35 °F without a low
ambient kit. (Operation down to 0 °F with the optional
low ambient kit.)
VII. Electrical
D. Neoprene isolators shall be used to minimize the transmission of sound and vibration.
E. Compressor sets shall have two stages, with unloading
accomplished through turning off one compressor.
A. Units shall be ______ volts, 3 phase, with a single power
point connection.
B. Unit control circuit shall have a 24 volt transformer, sized
sufficiently to operate the indoor fan.
IV. Condenser and Fans
A. Fan motors shall be direct-drive with propeller-type condenser fans which discharge air vertically upward.
B. Fan motors shall have permanently lubricated ball-bearings for longer wear during start and stop cycles and
shall have inherent overload protection.
C. Coil shall be constructed of rifled copper tubing mechanically expanded and bonded to louvered aluminum fins.
Coil shall include an integral subcooler.
Unitary Products Group
C. All condenser fan motors and the secondary of each
transformer shall be grounded.
VIII. Accessories and Options
A. Head Pressure Control
Shall include a condenser fan motor and a pressure
controller, allowing operation of the condensing unit
down to 0°F.
9
550.23-TG3Y
GUIDE SPECIFICATION - H*CE180 THROUGH 240 (cont’d)
B. Coil Guard
Field installed decorative grille shall be placed on the
units to provide further coil protection.
10
D. Phenolic Coating on Condenser Coil
Condenser coils shall be dipped in a four-coat phenolic
coating process to provide longer life in corrosive conditions.
Unitary Products Group
550.23-TG3Y
Unitary Products Group
11
5005 York Drive, Norman, OK 73069
Subject to change without notice. Printed in U.S.A
Copyright  by York International Corporation 2000. All Rights Reserved.
550.23-TG3Y800
Supersedes: 550.23-TG3Y (398 )
Codes: EBY, EGY
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