Owner’s Manual for MGG450
21
Operation
General Wiring Considerations
(000155a)
WARNING
Electric shock. Only a trained and licensed electrician
should perform wiring and connections to unit. Failure
to follow proper installation requirements could result in
death, serious injury, and equipment or property damage.
•
When routing the interface wiring, do not route it
against anything that could cut or chafe the wiring.
Do not route the wire against any hot or potentially
hot object.
•
Verify all electrical components share a common
hard wired ground.
•
Check with your local building inspector to
determine what is required to comply with local
regulations for grounding this type of permanent
installation.
Derating
NOTE:
Generac Continuous and Prime ratings are
defined by ISO 8528-1.
All units are subject to derating based on fuel quality,
ambient temperature and altitude. This will reduce the
available power for operating tools and accessories
connected to the receptacles. Altitude derate is 2.1% for
every 1000 ft. (305 m) above 3280 ft. (1000 m) See
for temperature and fuel quality
derate for 60 Hz units. See
and
for
temperature and fuel quality derate for 50 Hz units.
Table 3-4. COP Derate Temperature and Fuel
Quality (60 Hz units)
Ambient Temperature
Methane
Number
77°F
(25°C)
86°F
(30°C)
95°F
(35°C)
104°F
(40°C)
113°F
(45°C)
122°F
(50°C)
35
250
232
221
211
186
156
40
250
248
237
226
201
171
45
266
263
253
242
217
187
50
281
279
268
258
233
203
55
297
295
284
273
248
218
60
300
295
288
283
264
234
65
300
295
288
283
275
249
70
300
295
288
283
275
265
75
300
295
288
283
275
270
80
300
295
288
283
275
270
85
300
295
288
283
275
270
90
300
295
288
283
275
270
Table 3-5. Prime Derate Temperature and
Fuel Quality (60 Hz units)
Ambient Temperature
Methane
Number
77°F
(25°C)
86°F
(30°C)
95°F
(35°C)
104°F
(40°C)
113°F
(45°C)
122°F
(50°C)
35
300
279
266
253
223
187
40
300
297
284
272
242
206
45
319
316
303
290
260
224
50
338
335
322
309
279
243
55
356
354
341
328
298
262
60
360
354
345
339
317
281
65
360
354
345
339
330
299
70
360
354
345
339
330
318
75
360
354
345
339
330
324
80
360
354
345
339
330
324
85
360
354
345
339
330
324
90
360
354
345
339
330
324
Table 3-6. COP Derate Temperature and Fuel
Quality (50 Hz units)
Ambient Temperature
Methane
Number
77°F
(25°C)
86°F
(30°C)
95°F
(35°C)
104°F
(40°C)
113°F
(45°C)
122°F
(50°C)
35
200
186
177
169
149
125
40
200
198
190
181
161
137
45
213
211
202
194
174
150
50
225
223
215
206
186
162
55
238
236
227
219
199
175
60
240
236
230
226
211
187
65
240
236
230
226
220
200
70
240
236
230
226
220
212
75
240
236
230
226
220
216
80
240
236
230
226
220
216
85
240
236
230
226
220
216
90
240
236
230
226
220
216
Summary of Contents for MGG450
Page 8: ...4 Owner s Manual for MGG450 Introduction and Safety This page intentionally left blank ...
Page 48: ...44 Owner s Manual for Generator Wiring Diagrams and Service Log DC Controls Page 2 of 6 ...
Page 49: ...Owner s Manual for Generator 45 Wiring Diagrams and Service Log DC Controls Page 3 of 6 ...
Page 50: ...46 Owner s Manual for Generator Wiring Diagrams and Service Log DC Controls Page 4 of 6 ...
Page 51: ...Owner s Manual for Generator 47 Wiring Diagrams and Service Log DC Controls Page 5 of 6 ...
Page 52: ...48 Owner s Manual for Generator Wiring Diagrams and Service Log DC Controls Page 6 of 6 ...
Page 53: ...Owner s Manual for Generator 49 Wiring Diagrams and Service Log Relay Connections ...
Page 54: ...50 Owner s Manual for Generator Wiring Diagrams and Service Log AC Connections ...
Page 55: ...Owner s Manual for Generator 51 Wiring Diagrams and Service Log Control Panel Layout ...
Page 56: ...52 Owner s Manual for Generator Wiring Diagrams and Service Log Control Faceplate ...
Page 57: ...Owner s Manual for Generator 53 Wiring Diagrams and Service Log CAN Wiring ...
Page 58: ...54 Owner s Manual for Generator Wiring Diagrams and Service Log Receptacle ...