Lennox CHA16, Руководство по обслуживанию

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Page 38
FIGURE 32
Contactor K15
K16 K17 K18
DL2
DL4
DL5
K9 K19
T2
F3 F3
F3 F3
L1 L2 L3
GND
1st Stage (all units)
Contactor K16
2nd Stage
(208/230v 30kW and
all 45kW and 60kW units)
Contactor K17
3rd Stage
(45kW and 60kW
208/230V units only)
Contactor K18
4th Stage
(60kW 208/230V only)
K15
1st Stage Fuse F3
(all units)
2nd Stage Fuse F3
(208/230V units if
equipped with
multiple stages)
2nd Stage Fuse F3
(460 & 575V units
if equipped with
multiple stages)
3rd Stage Fuse F3
(208/230V units
if equipped with
multiple stages)
4th Stage Fuse F3
(208/230V 60kW only)
Electric Heat
Terminal Strip TB3
Electric Heat
Transformer T2
2nd Stage Heat Demand 1st Stage Heat Demand
Pilot Relay K9 Pilot Relay K19
2nd Stage
Time Delay DL2
(all units equipped
with multiple stage
heaters)
3rd Stage
Time Delay DL4
(all 208/230V
45kW & 60kW units)
4th Stage
Time Delay DL5
(208/230V
60kW units only)
Secondary Limit S20
(2 each element)
208/230V,15kW-2
208/230V,30kW-4
208/230V,45kW-6
208/230V,60kW-8
460V & 575V,15kW-2
460V & 575V,30kW-4
460 & 575V,45kW-6
460V & 575V,60kW-8
Primary Limit S15
(460 & 575V only)
PatchPlate
(in lieu of limit
208/230V only)
PARTS ARRANGEMENT
ELECTRIC HEAT SECTION
CHA16 SERIES UNITS 15 TONS AND LARGER
15, 30, 45, 60 AND 460/575V 75kW
460V & 575V,75kW-8
Primary Limit S15
(208/230V only)
Redundant Limit S63
(460 & 575V only)