Technical information
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17 
EH052CAV Slim Duct Heat Pump Mini Split 
Indoor Unit : EH052CAV Wired Remote : MWR-TH01 Outdoor Unit : UH052CAV 
Power 
Power Voltage : 
208/230V – 1 Ph – 60 Hz 
Control Voltage : 
DDC Fuzzy Logic 
Main Breaker Size : 
25 A 
Line Sizes :  
“Liquid” (expanded gas) line 
1/4” 
Suction 
1/2” 
BOTH LINES MUST BE INSULATED SEPARATELY    
Interconnect Length 
Maximum / Minimum Length 
98 / 10 feet 
Vertical lift 
49 feet (Trap required at 26ft) 
(Note condenser can be above or below evaporator) 
Charging   
Unit is charged for 
25 ft (Factory Charge 51.1oz R410A) 
Additional Charge of R410A 
0.2oz per ft over 25ft 
Charge for Line Run lengths 
Length 
25 
35 
45 
55 
65 
75  
85 
95 
98 
Added Charge (oz) 
0 
2.0 
4.0 
6.0 
8.0 
10.0 
12.0 
14.0 
14.6 
Interconnecting Wiring 
Gauge 
14 AWG Power &16 AWG Shielded Communication 
Number of Interconnecting Wires 
3x14 AWG Power & 2x16 AWG Comms = 5 Total 
Between unit and Wired RMC 
4x16 AWG Control, 2 for 12V DC Power, 2 Comms 
Indoor Unit Outdoor Unit
(Ground) F2 F2 Separate all Power
F1 F1 & Communications
Wiring by 2" 
G G
2(N) 2(N)
1(L) 1(L)
L Power Supply is 208/230V
F4 N even though L & N is used 
F3 for Terminal designation
V2
V1 208/230V
System 
Breaker
Wired Remote
Controller
V2
F3
F4
V1










