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ecoCOOLING Combo Installation, Operating & Maintenance Manual

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EcoCooling IOM Manual RevA

4 Design Data

4.1 General performance Data

Model #

BTU/ h

Watts

Removal

Voltage

(Air

Cond.)

Voltage

(HEX)

Breaker

Size

(AC)

Breaker

Size

(DC)

Approx.

Weight

(lbs / kg)

Combo

4,000

1171

230V AC

48V DC

50/60

15 Amp

7.0

152 / 69

Combo

6,000

1757

Combo

8,000

2343

** Rating capacity shown based on 131F return air temperature to cabinet in 131F ambient conditions at

nominal voltage and unimpeded resistance to air flow.

4.2 Summary of Basic Controls:

One Important Note: In order for air to air heat exchangers to cool the internal cabinet air,

the ambient air must be at a lower temperature than the internal cabinet return temperature.

All of these temperatures are monitored by the internal control boards located inside the

ecoCOOLING unit.

With the combo mode of operation, the air conditioner control board (USACG-6) operates

secondary to the heat exchanger control board (USHX2) which is the master control board.

The factory setting for the heat exchanger to operate alone is up to 35 Deg C internal return

temperature. Once the internal cabinet temperature reaches approx. 36 Deg C, the air

conditioner will come on. As long as the ambient is lower than 35 Deg C, the heat

exchanger and air conditioner will operate at the same time. Once the ambient is approx.

36 Deg C and an internal temperature is 36 Deg C or higher, the heat exchanger will turn

off. At this point the AC is operating on its own. The AC will continue to operate alone

until the ambient is lower than the internal temperature, and the internal temperature is

below 35 Deg C.

Access control boards

by removing (10)

M4x12 torx with pin

screws from top front

cover.

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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