FIGURE 6.40 Schematic diagram of heat pump with solid-state defrost contral L1 L2 240 V/10/60 Hz. (Outdoor unit) COMP DT DB1 AVS DB2 R SHR1 SHR2 DB3 ODT BR Legend Contactor COMP Compressor OFM Outdoor fan motor BM DB Defrost board BR Defrost thermostat Reversing valve solenoid Strip heat relay a1 Strip heat relay a2 Blower relay DT RVS SHR1 SHR2 BR SHR1 SHT1 SH1 SHT1 SHT2 Strip heat thermostat 2 SH1 SH2 Strip heat thermostat 1 Strip heater 1 Strip heater 2 Outdoor thermostat Blower motor SHR2 SHT2 SH2 ODT (Indoor unit) BM 240 V/10/60 Hz- L1 12
FIGURE 6.40 Schematic diagram of heat pump with solid-state defrost contral L1 L2 240 V/10/60 Hz. (Outdoor unit) COMP DT DB1 AVS DB2 R SHR1 SHR2 DB3 ODT BR Legend Contactor COMP Compressor OFM Outdoor fan motor BM DB Defrost board BR Defrost thermostat Reversing valve solenoid Strip heat relay a1 Strip heat relay a2 Blower relay DT RVS SHR1 SHR2 BR SHR1 SHT1 SH1 SHT1 SHT2 Strip heat thermostat 2 SH1 SH2 Strip heat thermostat 1 Strip heater 1 Strip heater 2 Outdoor thermostat Blower motor SHR2 SHT2 SH2 ODT (Indoor unit) BM 240 V/10/60 Hz- L1 12
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
What two factors initiate the defrost
mode in the diagram?
Transcribed Image Text:FIGURE 6.40
Schematic diagram of heat pump with solid-state defrost contral
L1
L2
240 V/10/60 Hz.
(Outdoor unit)
COMP
DT
DB1
AVS
DB2
R
SHR1
SHR2
DB3
ODT
BR
Legend
Contactor
COMP Compressor
OFM
Outdoor fan motor
BM
DB
Defrost board
BR
Defrost thermostat
Reversing valve solenoid
Strip heat relay a1
Strip heat relay a2
Blower relay
DT
RVS
SHR1
SHR2
BR
SHR1 SHT1
SH1
SHT1
SHT2 Strip heat thermostat 2
SH1
SH2
Strip heat thermostat 1
Strip heater 1
Strip heater 2
Outdoor thermostat
Blower motor
SHR2 SHT2
SH2
ODT
(Indoor unit)
BM
240 V/10/60 Hz-
L1
12
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