HEX050QA Heat Exchanger Instruction Manual
Page 7
6-2. Replacement
Delta HEX is designed with dry contact alarm output and LED
indicator on panel shown below to describe abnormal situation .
Refer to Section 4-1 for checking abnormal part is internal fan ,
external fan or controller for abnormalities .
In cases of parts abnormality , Delta will follow the reading and submit
spare part(s) below for replacement .
Internal fan P/N : AFB1548EH-BJ51
External 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 Fan life is expected to be a minimum 80,000 hours continuous
operation at 40°C with 15 ~ 65%RH .@ label rated vo ltage
7-2. Relibability
Test item
Condition
High temperature
IEC 60068-2-2
Low temperature
IEC 60068-2-1
High temp. / High humidity
IEC 60068-2-14 TEST Nb
Temperature cycle
IEC 60068-2-3
Vibration
ETSI 300 019-1-4 CLASS 4.1
Ingress protection
(External side)
IEC 60529 IP55 (NEMA 3)
GR-487 720hrs salt spray
Package bump
IEC 60068-2-29
8. Safety
