Service manual

Electrical schematics
This illustration shows the complete controller connections, internal as well as external:
1=Gnd
2=B
3=Gnd
4=A
5-6=12v line pwr
7-8=line pwr gnd
TTL
SD
J2
J7
J4
J1
RS 485
J15
J5
J11
J16
J22
3: Supply GND
2: NC
1: Supply 12V
8: Evap out sens GND
7: Evap out sens signal
6: Evap in sens GND
5: Evap in sens signal
4: Cond sens GND
3: Cond sens signal
2: Ret. Sens GND
1: Ret. Sens signal
4: Voltage sensor
3: Voltage sensor
2: Current sensor
1: Current sensor
6: +12V
5: +12V
4: \B
3: \A
2: B
1: A
Valve
Relay drive out
0/12V DC 200mA
Fan 1
Fan 2
Fan 3
External
interfaces
Alarm
AC 1
Power sensors
Temp sensors
NTC -30 to 85°C
(-22 to 185°F)
Supply
6: Cond fan relay out.
5: Cond fan relay 12V
4: Heater relay out.
3: Heater relay 12V
2: Compressor relay out
1: Compressor relay 12V
4: GND
3: Tacho
2: PWM
1: NC
4: GND
3: Tacho
2: PWM
1: NC
3: GND
2: Tacho
1: PWM
9: Hotspot sens GND
8: Hotspot sens.
7: Dig GND
6: Dig2 input
5: Dig1 input
4: AC1 relay contact
3: AC1 relay contact
2: Alarm 1 relay contact
1: Alarm 1 relay contact
Standard shielded ethernet
cable (568A termination)
Accessory
TTL interface
(galvanic isolated)
NTC -30 to 85°C
(-22 to 185°F)
Active low
max 12V DC/10mA
Max. 42 VAC or 60 VDC. /
500mA. Default normally
open - jumper changeable
Max. 42 VAC or 60 VDC. /
500mA. Default normally
open - jumper changeable
Fig. 14
Overall controller
Technical data
These units are designed for high reliability and electrical eciency.
• Compressor is a rotary type with high eciency.
• Radial fans with backward curved impellers.
• Slim MPE Condenser for high performance thus low pressure drop.
This table shows the technical data for 4000 BTU models.
Specication Unit 115 VAC units 230 VAC units
Unit dimensions
(height×width×depth)
Inch. 29 x 17.3 x 11.3
Weight
lbs. 70
Operational temperature range
°F -40-+131
Storage temperature / humidity
°F /RH% -40-+176 / 0-99
Noise level, outside 2m distance at
80.6°F. internal / 95°F. Ambient
dB(A) 65
IP protection EN 60529
IP class 65
Outdoor Enclosure acc. UL 50
Type 3R
Refrigerant type / amount
Type/lbs R134a /210g
Cooling capacity at 80.6°F
internal/95°F Ambient (total)
BTU/h 4092
EER Air conditioning at 95°F internal /
95°F Ambient
BTU/h 5.2
Internal airow
CFM 679
External airow
CFM 798
Input voltage range
VAC 115 +/-10% 230 +/-10%
Frequency
Hz 60 50/60
Power consumption
Circulation / Air Conditioning
W 48/740
Power consumption Heater
W 1000 1000
LRA (locked rotor current)*
A 37* 17*
Extension cord dimension
awg 14 14
*Recommended over current protection specication to be found on page 5
Introduction
4000 btu. units
086161 • Version 1.0 • 15.07.2014
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en