548086-XIM-C-0814
Johnson Controls Unitary Products
7
SECTION VIII: ELECTRICAL
CONNECTIONS
GENERAL INFORMATION & GROUNDING
Check the electrical supply to be sure that it meets the values specified
on the unit nameplate and wiring label.
Power wiring, control (low voltage) wiring, disconnect switches and over
current protection must be supplied by the installer. Wire size should be
sized per NEC requirements.
The complete connection diagram and schematic wiring label is located
on the inside surface of the unit service access panel.
FIELD CONNECTIONS POWER WIRING
1.
Install the proper size weatherproof disconnect switch outdoors
and within sight of the unit.
2.
Remove the screws at the top and sides of the corner cover. Slide
corner cover down and remove from unit.
3.
Run power wiring from the disconnect switch to the unit.
4.
Route wires from disconnect through power wiring opening pro-
vided and into the unit control box as shown in Figures 6 & 7.
5.
Install the proper size time-delay fuses or circuit breaker, and
make the power supply connections.
TABLE 3:
R-407C Saturation Properties (Superheat Only)
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
70
45
85
55
100
63
115
70
130
77
145
83
160
89
71
46
86
55
101
63
116
70
131
77
146
83
161
89
72
47
87
56
102
64
117
71
132
78
147
84
162
89
73
47
88
56
103
64
118
71
133
78
148
84
163
90
74
48
89
57
104
65
119
72
134
78
149
84
164
90
75
49
90
57
105
65
120
72
135
79
150
85
165
90
76
49
91
58
106
66
121
73
136
79
151
85
166
91
77
50
92
58
107
66
122
73
137
80
152
86
167
91
78
50
93
59
108
67
123
74
138
80
153
86
168
91
79
51
94
60
109
67
124
74
139
80
154
86
169
92
80
52
95
60
110
68
125
74
140
81
155
87
170
92
81
52
96
61
111
68
126
75
141
81
156
87
171
93
82
53
97
61
112
69
127
75
142
82
157
87
172
93
83
53
98
62
113
69
128
76
143
82
158
88
173
93
84
54
99
62
114
69
129
76
144
82
159
88
174
94
TABLE 4:
R-407C Saturation Properties (Subcooling Only)
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
Press
Temp
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
psig
°F
175
84
190
90
205
95
220
99
235
104
250
108
265
112
176
85
191
90
206
95
221
100
236
104
251
108
266
113
177
85
192
90
207
95
222
100
237
104
252
109
267
113
178
85
193
91
208
95
223
100
238
105
253
109
268
113
179
86
194
91
209
96
224
100
239
105
254
109
269
113
180
86
195
91
210
96
225
101
240
105
255
110
270
114
181
86
196
92
211
96
226
101
241
106
256
110
271
114
182
87
197
92
212
97
227
101
242
106
257
110
272
114
183
87
198
92
213
97
228
102
243
106
258
110
273
114
184
87
199
93
214
97
229
102
244
106
259
111
274
115
185
88
200
93
215
98
230
102
245
107
260
111
275
115
186
88
201
93
216
98
231
103
246
107
261
111
276
115
187
88
202
94
217
98
232
103
247
107
262
111
277
116
188
89
203
94
218
99
233
103
248
108
263
112
278
116
189
89
204
94
219
99
234
104
249
108
264
112
279
116
All field wiring must USE COPPER CONDUCTORS ONLY and be
in accordance with Local, National, Fire, Safety & Electrical Codes.
This unit must be grounded with a separate ground wire in accor-
dance with the above codes.
