FSI F-DI1.25VHP ECU Operational Manual Download Page 9

Page: 9 / 11

NOTES:

1.25VHP

Wiring Rev 1A

Date 04-06-11

Identified Terminal

Emergency cool switch UP

Center position OFF

Emergency Heat switch Down

Controller no jumper

Compressor and Reversing

valve energized for heat

Fan speed

Relay 24 volt

Fan indoor

supply

Low

RED

Fan Capacitor

Transformer

24 volt AC

Compressor

relay 24 volt

RVR 24 volt

115 volt

30 A

Field

receptacle

Fuse 2 Amp

Run

Capacitor

Start

Capacitor

YEL

RED

WHT

RED

BLK

RVS

HPS

WHT

BLK

RED

BLKD

PUR

BLK

RED

WHT

High

BLK

Rear of

Interface

connector to

controller

WHT

RED

ORG

BLK

RESISTANCE

HEAT

LIMIT

SWITCH

24v S

Therm

24v R

Fan

Comp

Rev V

Yel

BLK

YEL

WHT

BLK

Emergency heat

and cool switch

PUR

BLU

BLK

HPC

LPC

THR

Out

OCT

OAT

FAN
FAN

THR

RED

Yel

RED

BLK

PUR

BLK

PUR

Resistance

heat relay

24 volt

Fan

Capacitor

FAN

MOTOR

BRN

WHT

BRN

Defrost timer board

HPS relay

ORG

RED

Comp &

Overload

Select switch

res heat or

heatpump

PUR

Summary of Contents for F-DI1.25VHP ECU

Page 1: ...FSI 1 25 Ton AC Heat Pump Unit Operational Guide for F DI1 25VHP ...

Page 2: ...ressures moving parts and high electrical voltages and current that can do bodily injury or can kill an untrained person all warning labels should be read and complied with Basic setup Position the ECU in the required location to allow for the supplied ducting to be connected to the shelter and the installation of the power supply and control cabling There should be adequate clearance on all sides...

Page 3: ...nected to the ECU with watertight turn lock connectors When connecting the controller cable to both the ECU and Controller you may hear a click when it locks in place The temperature sensing is done at the intake duct of the ECU so the controller can be placed inside or outside depending on your final needs Powering up the ECU The power supply should be a 100 to 125 volt single phase supply Do not...

Page 4: ...troller cable connection on the ECU to select resistance heat only Cold weather R heat only this will transfer the Heatpump power to the second resistance heater The first resistance heater is controlled by the ECU s operation and is transparent to the user Turn on the power supply circuit breaker The ECU s fan will immediately start to circulate the air within the shelter but no heating or coolin...

Page 5: ...he asterisk is displayed the controller is actively operating the ECU compressor and or optional electric resistance heat Any adjustments to temperature setting can be done while the controller is operating Simply change the temperature setting by pressing the Higher or Lower arrow buttons Once the desired temperature is shown on the controller it will be accepted as the new setting The controller...

Page 6: ...n a warm humid condition it may require a significant amount of time for the ECU to reach the desired temperature The ECU will dehumidify the space first and then lower the temperature second The ECU during it s heating mode at certain outside temperatures will develop frost and ice on the outside coils In order to maintain the optimum conditions for heating the ECU will automatically go into a de...

Page 7: ...gency operation mode The ECU can be manually operated in the case of a controller failure loss if the control cable gets damaged or an internal relay becomes inoperable The emergency bypass should only be used when there is an issue that cannot be resolved and heating or cooling is mandatory Care should be taken not to switch between heating and cooling or on and off without allowing at least a 3 ...

Page 8: ...mpressor was running it will stop The ECU fan will continue to circulate air until it is turned of at the power supply breaker This is normal operation Turn off the power supply breaker Remove the plug from the power source Remove the ducting and controller cable from the ECU Clean and store the ducting controller and ECU unit Storage of the ECU is best in a clean dry location ...

Page 9: ...r Start Capacitor P T C R YEL YEL RED WHT RED BLK BLK RVS HPS WHT BLK RED BLKD PUR BLK RED WHT High BLK Rear of Interface connector to controller WHT RED ORG BLK BLK RESISTANCE HEAT LIMIT SWITCH 2 5 7 24v S Therm Therm 24v R NU Fan Comp Rev V Yel BLK BLK YEL YEL WHT BLK Emergency heat and cool switch PUR BLU BLK HPC LPC C THR RV Y Out R B C Y D OCT OAT FAN FAN THR CC RED Yel RED RED 2 5 7 BLK PUR ...

Page 10: ... S Black F Therm Green H Therm White G 24v R Red B NU E Fan Yellow D Comp Orange C Rev V Blue Controller cable receptacle and controller interface connector Controller Controller cable Wiring details Viewed from the rear of the plugs A 24v S Black F Therm Green H Therm White G 24v R Red B NU E Fan Yellow D Comp Orange C Rev V Blue Wiring details viewed from the rear of the receptacle ...

Page 11: ... airflow to the condenser section is blocked or obstructed by dirt the unit can shut down due to over pressure disconnect the supply cord and allow the unit to cool for several minutes clean or unblock the condenser and retry the ECU This is normal during cooler weather the ECU will switch to resistance heat as the condenser thaws it will switch back to heat pump mode When the condenser freezes th...

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