Toyotomi HC-20 Installation And Operation Instructions Manual Download Page 9

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Air release screw

Operation panel

Front panel

5. Power lamp

2. AUTO/MANUAL button

4. CHILD LOCK button

6. TIMER lamp

7. TEMP/TIMER/CLOCK set

Water supply (NPT 1/2 female)

Water return (NPT 1/2 female)

8. Digital display

10. AUTO/MANUAL indicator

3. TIMER button

9. CHILD LOCK indicator

11. AM/PM indicator

1. Power switch

Junction box

Air filter

External output
(for circulation control or zone valve)

Louvers

12. Thermistor
(Room Temperature)

DIGITAL DISPLAY

SECTION E:
OPERATING CONTROLS AND PART NAMES

HC-20_US.qxd 14.7.1 9:13 ページ 8

Summary of Contents for HC-20

Page 1: ...SECTION D Installation Selecting a Location Plumbing Removing Trapped Air Permanent Wiring Installation External Output Terminal Wiring Wiring For External Output SECTION E Operating Controls and Part Names SECTION F Safety Tips for Operation SECTION G Before use Operation SECTION H Test Run SECTION I Routine Maintenance SECTION J Troubleshooting 1 2 3 4 4 5 5 6 7 7 8 10 11 11 14 15 16 HEAT CONVEC...

Page 2: ...U 8133 BTU 9151 BTU 10168 BTU 11185 BTU 12203 BTU High 6002 BTU 7368 BTU 8733 BTU 10099 BTU 11464 BTU 12830 BTU 14195 BTU 15561 BTU Low 3429 BTU 4105 BTU 4780 BTU 5456 BTU 6132 BTU 6808 BTU 7484 BTU 8160 BTU 1 GPM 3 79 L min Medium 5932 BTU 7096 BTU 8260 BTU 9424 BTU 10588 BTU 11752 BTU 12916 BTU 14080 BTU High 7561 BTU 9155 BTU 10749 BTU 12344 BTU 13938 BTU 15532 BTU 17126 BTU 18720 BTU Low 3866 ...

Page 3: ... 720 mm 7 3 16 182 mm 7 3 16 182 mm 9 16 15 mm 1 13 16 46 mm 1 9 16 40 mm 15 1 4 387 mm 4 7 8 124 mm 1 3 8 35 mm 90 SECTION B UNPACKING UNPACKING 1 Unpack the unit carefully 2 Check to see if there are any loose screws that may have occurred in transit 3 Take accessories and the instruction manual out of the carton ACCESSORY PARTS 1 Installation and Operation Instructions 2 Warranty Card 3 Wall Fi...

Page 4: ...nstalled by a licensed authorized person s due to the necessity of making electrical and water connections Refer to the installation and operation instructions for assistance or consult your dealer for further information 2 HAZARD OF ELECTRICAL SHOCK Before removing any access panels of unit for service make sure the electrical supply to the unit is shut off Failure to do this may result in HAZARD...

Page 5: ...ssity of making electrical and water connections SELECTING A LOCATION Select a place to install the unit where hot water and electric supply are easily available 1 Select a place which is free of combustible substances 2 Select a place where proper maintenance and repair can be provided for the unit after installation 3 Install the unit on level floor NOTE The unit may be installed on the wall dir...

Page 6: ...i freezing solution or non scale block or non slime block or corrosion free water for the circulation water Temperature of circulation water has to be less than 190 F 87 8 C Maximum allowable working pressure has to be less than 142 PSI REMOVING TRAPPED AIR When operating for the first time air may be trapped in the system To release the air out of the piping and the unit follow the procedures bel...

Page 7: ...green from the power supply cord bracket 4 Disconnect the two power supply wires from Junction box terminal 5 Squeeze the strain relief bushing with an adjustable pliers to remove the plastic bushing from the unit right side Remove the power supply cord 6 Remove the Hole cap on the back side of the unit and put it in hole of the right side where the power supply cord was installed 7 Use at least A...

Page 8: ...NAL OUTPUT 1 Remove the four 4 screws and the cover on the back side of the unit 2 Cut the rubber bushing of the cover by a cutter and insert the wire for the circulation control or zone valve 3 Connect the wire to the terminal block in accordance with the color indication 4 Fix the cover to the unit with the four 4 screws After installation is completed secure the unit to the wall with the wall f...

Page 9: ...female Water return NPT 1 2 female 8 Digital display 10 AUTO MANUAL indicator 3 TIMER button 9 CHILD LOCK indicator 11 AM PM indicator 1 Power switch Junction box Air filter External output for circulation control or zone valve Louvers 12 Thermistor Room Temperature DIGITAL DISPLAY SECTION E OPERATING CONTROLS AND PART NAMES 8 HC 20_US qxd 14 7 1 9 13 ページ 8 ...

Page 10: ...r off The button turns CHILD LOCK operation mode on or off Light means the unit is in operation Light means the unit operating in Timer setting mode TEMP TIMER CLOCK set modes can be set by pressing hour or min buttons Displays clock set temperature room temperature and error code Light The unit is in CHILD LOCK mode Light Digital display shows fan speed mode Light Digital display shows current ti...

Page 11: ...OT unplug if your hands are wet An electrical shock may occur 6 DO NOT run power cord under carpets rugs or floor mats of any kind 7 DO NOT apply any excessive force or pressure to the power supply cord 8 Make sure that the plug is free of dust or debris 9 DO NOT use an extension cord 10 RISK OF INJURY FROM MOVING PARTS AND ELECTRICAL SHOCK Disconnect power cord before servicing unit CAUTION 1 Kee...

Page 12: ...38 C or more flows into the unit the fan will start rotating If the temperature of the circulation water is less than 100 F 38 C the fan will not start rotating If the temperature of the circulation water is between 100 F 38 C and 110 F 43 C the unit will operate at low fan speed When the temperature of the circulation water is more than 110 F 43 C the fan speed is adjusted automatically according...

Page 13: ...n button as required Room temperature can be set from 50 F 90 F 12 C 30 C NOTE The fan speed is shifted automatically between low medium and high fan speed to maintain the room temperature Once the room temperature exceeds the selected setting by approx 4 F 2 C the Fan will automatically stop MANUAL FAN OPERATION 1 Press the Power switch Power lamp will light and the current room temperature and t...

Page 14: ...lashing to continuous and the timer time will be shown on the digital display after completion of setting the timer To start the timer operation press Power switch to turn on and then press the Timer button The Timer lamp will light and the timer operation will start NOTE The unit operates at the same hour and at the same temperature if it has once been set for such hour and temperature NOTE If at...

Page 15: ... operation the time timer and temperature settings will be erased When the power returns the unit will automatically restart with the following conditions Operation mode The unit will restart in AUTO FAN mode TIMER The Timer settings will be reset Please reset the TIMER See page 12 TIMER OPERATION Set temperature The Set temperature will resume to the previous temperature set Child Lock The Child ...

Page 16: ...sh filter is located on the cabinet s rear side Once a month slide the filter up to remove and vacuum it clean To remove the air filter remove the two 2 screws by using Phillips head screwdriver WARNING NEVER touch the Heat exchanger It can very hot and cause injury CAUTION Be sure to unplug the unit before performing any checks or cleaning SECTION I ROUTINE MAINTENANCE 15 HC 20_US qxd 14 7 1 9 13...

Page 17: ...ir blowing out Heating performance has decline Occasionally makes cracking noise when starting or after shutdown Ticking noise Cannot be operated beeping noise and OFF is shown on digital display Water running noise Air flow is poor Power lamp blinks REASON Power outage Power supply cord is disconnected Child Lock is on Room temperature is higher than set temperature when unit is in Auto fan mode ...

Page 18: ...y of your bill of sale or credit card charge receipt or other documents evidencing the date of the Product s delivery if service is not available locally please contact our CUSTOMER RELATIONS DEPARTMENT at TOYOTOMI U S A INC 604 Federal Road Brookfield CT 06804 203 775 1909 THE FOREGOING EXPRESSES ALL OF TOYOTOMI S OBLIGATIONS AND LIABILITIES WITH RESPECT TO THE QUALITY OF PRODUCT FURNISHED BY IT ...

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