Delta HEX050QA Instruction Manual Download Page 5

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HEX050QA Heat Exchanger Instruction Manual

Page 3

3-2 . Mounting panel cutout

：

4. Electrical specification

4-1. Connection and LED indicator (on HEX panel)

Power Connection COMM connection

User can follow dry contact definition that is Normal Open (N.O.) to

detect abnormal status from pin 1 & pin 2

Definition

N. O

Connection

Pin 1 & Pin 2

Control board, NTC and fan are in
normal status

OPEN

NTC resistance is over range such as
“open circuit” or “short circuit”

Fan speed is lower than 50% of
definition or fan is locked

Dry contact max. rating : 75VDC/50mA

Summary of Contents for HEX050QA

Page 1: ...Fremont Blvd Fremont CA 94538 U S A TEL 1 510 668 5100 FAX 1 510 668 0680 Cabinet Thermal Solutions deltaww com Taiwan Delta Electronics Inc 252 Shang Ying Road Kuei San District TEL 886 0 3 3591968...

Page 2: ...ecification 3 4 1 Connection and LED indicator on HEX panel 3 4 2 Standalone control mode 4 5 Mechanical feature 5 5 1 Thermal path and Airflow baffle 5 5 2 Configuration 5 6 Maintenance and Replaceme...

Page 3: ...midity and dirt The fan on the external air loop conforms to IP55 protection rating 2 2 Specification Main feature Unit Model Number HEX050QA Outline Dimension W x D x H mm in 550 x 434 x 155 20 x 17...

Page 4: ...F 149 F Storage temperature 40 C 70 C 40 F 158 F Humidity External air circuit 0 100 RH Internal air circuit 0 90 RH Ingress protection on external side l IEC60529 IP55 NEMA 3 GR 487 720hrs salt spra...

Page 5: ...nection User can follow dry contact definition that is Normal Open N O to detect abnormal status from pin 1 pin 2 Definition N O Connection Pin 1 Pin 2 Control board NTC and fan are in normal status O...

Page 6: ...GREEN GREEN GREEN Failed RED RED RED Normal touch TEST CLEAN Blinking GREEN Blinking GREEN N A Failed touch TEST CLEAN Blinking RED Blanking RED N A FAN failed Fan speed is lower than 50 of definitio...

Page 7: ...though the HEX then flow out from internal supply opening The air supply of the cold air will be used to cool down the system On the opposite side cooler air from the surrounding environment will be d...

Page 8: ...sconnect internal fan from controller Item Note the connection location Use brush and low pressure air to remove dust on internal fan plate assy Item 4 internal fan heat exchange core air intake openi...

Page 9: ...fan P N AFB1548VH DH2L Controller P N HEX050QA 000C User can then refer to maintaince sequence on previous page or request Delta authorized support for assistance 7 MTBF and Reliability 7 1 MTBF L10 F...

Page 10: ...e caution at all times Incorrect installation may cause damage and or injury Installation and maintenance should be performed only by qualified personnel Use caution at all times Ensure the grounding...