DIFFERENCES BETWEEN MODELS

TM 5-4120-359-14

(1) DELETED

(2) FRESH AIR DUCT - Provides filtered outside air for ventilation. May be mounted on opposite side by

exchanging it with FRESH AIR COVER, item 3.

(3) FRESH AIR COVER - Seals alternate FRESH AIR DUCT opening closed. See item 2 above.

(4) FRESH AIR FILTER - Filters the fresh (outside make up) air.

(5) POWER CONNECTOR (J1) - Connection point for input 208 volt, 3 phase, 400 Hz power cable.

(6) REMOTE CONTROL CONNECTOR (J7) - Connection point for remote control cable.

(7) TEMPERATURE CONTROL (A1-R1) - Allows adjustment and control the temperature when operating in the

cool or heat modes.

(8) RUN INDICATOR LIGHT (XDS1) - Lights when the unit is operating. Also lights when pressed in (for test

purposes) power is connected.

(9) MODE SELECTOR SWITCH (S1) - Allows operator to select COOL, OFF, LOW HEAT or HIGH HEAT

operating mode.

(10) TIME TOTALIZING (HOUR) METER (M1) - Indicates operating time (elapsed) in a modes.

(11) SIGHT GLASS - Allows visual inspection and indicates the condition of the liquid refrigerant when the unit is

operating in the COOL mode.

(12) LOW SIDE SERVICE VALVE - Provides a connection point for maintenance, testing, and service.

Unauthorized personnel should not tamper with this valve.

(13) HIGH SIDE SERVICE VALVE - Provides a connection point for maintenance, testing, and service.

Unauthorized personnel should not tamper with this valve.

(14) HIGH PRESSURE CUTOUT (SWITCH) RESET (4) - Permits manual closing (reset) of switch following

system shutdown due to excessive refrigerant system pressure.

1-9. DIFFERENCES BETWEEN MODELS

(1) Throughout this manual the following model numbers are assigned these codes:

Code:

Model Number

DHF

F18H4-2 (Keco)

EKP

MSP16-4-08 (Airtacs)

FGG

FAC-MH-18S (Ferange)

(2) The condenser sections are wired differently. Sheet 3 of figure 4-3 shows wiring for the DHF version. Models

EKP and FGG have the following differences:

a. Jumper added between K1-11 and TB3-5.

b. Wire from J13-L is connected to terminal K1-12 instead of K1-X1.

c. TB4-12 connections are made to TB4-10.

(3) There are no differences between Model EKP and FGG.

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