Ecoer EAHAEC-36 - Page 32

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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
No.
Name
CN#
Meaning
1
Power Supply
CN1
L1_in: connect to L1-line (230V AC input)
CN3
L2_in: connect to L2-line (230V AC input)
2
TP
CN8
Exhaust temp. sensor TP
3
TESTPORT
CN35
Used for testing
4
HEAT1
CN19/CN20
Connect to chassis heater, 208-230V AC when is ON
5
HEAT2
CN24/CN25
Connect to compressor heater, 208-230V AC when is ON
6
RV(4-WAY）
CN17/CN18
Connect to Reversing valve（ 4 way valve）, 208-230V AC
when is ON.
7
AC-FAN2
CN31/CN36/CN28
Connect to AC fan2
8
AC-FAN1
CN27/CN34/CN32
Connect to AC fan1
9
H-PRO/L-PRO
CN10
Connect to low&high pressure switch
10
Compressor Top
CN14
Connect to compressor top temperature sensor
11
T2B
CN11
Connect to pipe temp. sensor T2B
12
T4 T3
CN9
Connect to pipe temp. sensor T3, ambient temp. sensor T4
13
PMV
CN15/CN23/CN26/
CN30/CN33/CN38
Connect to Electric Expansion Valve(A~F)
14
/
CN6
Connect to IPM&PFC board CN9
15
PQE
CN22
Communication to indoor unit