SETTING INSTRUCTIONS
Contents
1. COMPARTMENT Selection of an OFF event If there is a demand to turn OFF rather than turn down the heating or turn up the cooling for example during unoccupied periods an OFF event can be selected Selecting a programmed Off event for heating use the V button to lower the heating set temperature to its minimum value which is Off the characters Of will replace the heating control temperature Selecting a programmed Off event for cooling use the A button to raise the cooling set temperature to its maximum value which is Off the characters Of will replace the cooling control temperature value When all events for the day s on the 7 day mode display are as required press DAY to Ate E T show the following day s events HEAT r aUe b eas o con i F J The display will appear similar to one of auto DL the diagrams on the right depending ON 2 on whether the HP75 has been set up for 7 day or 5 2 day mode Use the A V AV NEXT buttons to alter the events as required 5 2 day mode 75 0 C 200 C amp COOL Ya OR AUTO If the previous day s programme is to be repeated press COPY to repeat AUO CILI those events with just one button press ON 67 Pressing COPY when in 5 2 mode will repeat the events programmed for days 1 to 5 on the weekend Use the DAY and NEXT buttons to check all the programmed events using the 4 V A Y buttons to make changes to each event as ne2. See Fig 12 When this symbol appears both batteries should be replaced with high quality alkaline cells Operation will continue normally until the 15th midnight after the symbol started blinking and then the unit will switch off all outputs and shut down with just the time and the blinking battery displayed While the battery symbol is still blinking the old batteries may be removed and new batteries placed in the sleeve and inserted within one minute Internal circuitry will maintain the user set program during this period AUTO a 7 HEAT one oe cor gy A A AUTO m lm ON Fig 12 Blinking battery symbol change batteries a_r Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material Danfoss reserves the right to alter its products without notice This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications already agreed Danfoss Randall Ltd Ampthill Road Bedford MK42 9ER Tel 01234 364621 Fax 01234 219705 Email danfossrandall danfoss com Website www danfoss randall co uk Part No 31181 Iss 3 06 01
3. frost protection thermostat Use the holiday function Override the programmed temperature Select emergency heat mode RUN MODE While the HP75 is in RUN mode i e controlling the space temperature in accordance with the program the colon between the hours and minutes digits blinks The colon does not blink while the time and program are being set ae m 259 20 0 C o By o Ig i con IMM x Display following a RESET RUN OFF a AUTO Les Pri mode Colon blinking ON 1 SELECTING THE CLOCK TYPE 12hr AM PM or 24hr The factory pre set clock has a 24 hour display If a 12 hour display with am pm indication is preferred then press and hold down the NEXT and DAY buttons until the display changes Repeat to return to 24 hour mode AUTO i Epor an nor NEAT Sal eo ae COOL Ea OFF I A Clock set to 24 hour AM PM fag f am Vam display SELECTING THE TEMPERATURE DISPLAY F or C The factory pre set temperature display is C If a F display is preferred then press and hold down the DAY and COPY buttons until the display changes Repeat to return to a C display AUTO HEAT COOL OFF AUTO ON Fig 3 Temperature range changed to Centigrade SETTING THE CLOCK Press PROG to display the time of day on its own the display blinks Press DAY the display stops blinking to select today 1 Monday 6 Saturday etc Press and hold down the or button to change the
4. time quickly in ten minute steps or press and release to change the time by one minute PRI PROG EMHEAT NEXT DAY COPY 00 00 0 Oe BATTERY COMPARTMENT DISPLAY ELEMENTS Those that will appear while following this instruction Programmed A C ON indicator LI Programmed temperature HENTING temperature indicator indicator Heat ON Program indicator override indicators AUTO Indicates HEAT temperature COOL display OFF AUTO Temperature ON override indicators Fan cee eee indicator STA time ARONET or Day of week HA days When the day and time are correct press and release PROG once to start the clock and further press and release again until the colon starts blinking RUN mode The intermediate stages are explained in the Setting Instructions AUTO HEAT we ow Fig 4 Clock time ready for re l f l changing ano ILLU Colon steady digits blinking ON qf fit i i STANDARD TIME SUMMER TIME CLOCK When the clocks are changed from Summer Time to Standard Time or vice versa just press and hold down the button to change from Summer Time to Standard Time or the button to change from Standard Time to Summer Time The first time this is done after a RESET the clock is set and can only be changed by one hour as appropriate If a mistake is made e g pressing the button in the autumn when the button should have been pressed rectify the problem by pres
5. Electronic Programmable Heat Pump Thermostats HP75 1 with integral sensor HP75A 1 with remote sensor SETTING INSTRUCTIONS SETTING THE CLOCK After the recessed RESET button has been pressed the display appears as shown with the colon blinking and all the factory pre set WE al conditions will be present eara v w Ww wW yy The clock is a 24 hour type To change toa 12 agreer ammer j F Lagu been hour type with am pm indication press and ann hold down the NEXT and DAY buttons until T Li a an Vas Yams the display changes Repeat to change back 1 to 24 hour mode The control temperatures are shown in C but can be changed to display F if this is preferred To change press and hold down DAY and COPY buttons until the display changes To set the clock to the correct time and day press and release the button marked PROG The digits blink Press the DAY button the digits stop blinking until the correct day number is shown 1 Monday To change the time quickly in ten minute steps press and hold down the or buttons To change the time one minute at a time press and release these buttons When the time is correct press PROG to start the clock and continue setting sequence SETTING THE EVENT TIMES amp TEMPERATURES The HP75 can be set by the installer to provide either 2 or 6 events each day Refer to the installer setting instructions if this parameter needs to be altered Please
6. UTO HEAT HEAT COOL COOL OFF OFF AUTO AUTO ON ON Fig 6 Thermostat mode Heating FROST PROTECTION MODE While in thermostat mode the HP75 may be set to guard against possible frost damage in areas where the unit or its remote sensor is installed The heating control temperature may be set to a suitable level using the A and pressed simultaneously VACATION MODE HEATING ONLY OR COOLING ONLY While in thermostat mode with either HEAT or COOL selected pressing the DAY button will activate the holiday mode The display will change to that shown in Fig 7 or Fig 7a with a number indicating the default holiday period of 00 days Use the or buttons to set the number of days required in the range 1 99 days If the number of days is left at 00 then the unit will return to normal at event 1 the following day When the selected number of days have elapsed the unit will automatically return to normal controlling temperatures to the set programme Fig 6a Thermostat mode Cooling HEAT i at wm Aar PBL COOL oT yi COOL Hl S1 yi OFF OFF AUTO LILI AUTO LILI ON ON E Fig 7 Heating Fig 7A Cooling Control may also be restored to normal before all days have elapsed by pressing the A and simultaneously USER OVERRIDES While the unit is operating normally in RUN mode the following overrides are available TEMPERATURE SETTING OVERRIDE Press A to increase or W to decrease the current s
7. button marked FAN OFF will change the fan mode between aa AUTO ON and SMART FAN AUTO Thermostat starts fan when there is a demand for either heating or cooling Note If the installer has selected Fossil Fuel Aux Heat the fan is controlled by the warm air heater whenever there is a call for auxiliary heating ON Fan runs continuously SMART FAN Fan runs continuously during events 1 6 unless a programmed Off is encountered but reverts to Auto mode during event 6 1 When in Smart Fan mode the bar on the display adjacent to FAN ON will flash AUTO f Fig 10 SELECTING EMERGENCY HEAT MODE The EM HEAT button beneath the AUTO 20 9 F flap can be used to select the HEAT mm _ Emergency Heat mode When cooL E 79 EUS selected the heat pump will be turned Pia jo i l off and all heating will be provided ON 1 by the auxiliary heating stage An Fig 11 E in the display will flash until the unit is returned to normal operation See Fig 11 To restore the system to normal heat pump operation press the EM HEAT button then SEL button three times to return the unit to the AUTO mode BATTERY MAINTENANCE It is recommended that high quality alkaline batteries are used New batteries will provide the power for switching the outputs on and off for approximately 2 years When the batteries voltage drops to the minimum level needed to maintain operation a battery symbol will blink in the display
8. cessary TO EXIT THE PROGRAMMING MODE When all the events for every day are as desired press PROG to return to RUN mode with the colon blinking The heating cooling system will now be controlled to provide the programmed temperatures Refer to USER GUIDE for details of manual overrides available in day to day operation Setting record for thermostat set for six events each day Event Numbers Format 1 2 3 4 5 CLG HTG CLG HTG CLG HTG CLG HTG CLG HTG CLG Pre set programmes Monday to Friday 25 0 C 20 0 C 27 2 C 15 0 C 25 0 C 20 0 C 27 2 C 6 30 16 30 Actual User Settings Monday to Friday 1 Monday 2 Tuesday 3 Wednesday 4 Thursday Pre set Programmes Saturday amp Sunday 27 2 C 20 0 C 27 2 C 20 0 C 25 0 C 20 0 C 25 0 C 20 0 C 25 0 C 21 1 C 27 2 C 7 30 16 30 Actual User Settings Saturday amp Sunday 6 Saturday 7 Sunday If the unit is to operate in 5 2 day mode then only days 1 and 6 need be completed NOTES ON SETTING EVENT TIMES Assumes unit is in 6 events day mode If during the event checking and setting procedure no buttons are pressed for more than two minutes then the HP75 will return to RUN mode automatically If this appears to have occurred it is advisable to re check the program to ensure that it is as required When setting event times and temp
9. eratures it is not possible to set event times out of chronological order Event 1 may be set at any time from 0 00AM to 11 59PM but would normally be in the morning Event 2 may be set at any time between event 1 and 23 hours 59 minutes after event 1 Event 3 may be set at any time between event 2 and 23 hours 59 minutes after event 1 Event 4 may be set at any time between event 3 and 23 hours 59 minutes after event 1 and so on EVENT 3 EVENT 4 EVENT 5 COOLING J EVENT 1 7 EVENT 2 5 Mi FACTORY PRE SET PROGRAMME ENESE es meres L EVENT 6 HEATING EVENTS 2 384 4 l l EXAMPLE USER SET PROGRAMME Manual overide A used at 9am to raise temperature by 2 C Programmed 3 C dead band maintained HEATING MIDNIGHT 3 00 6 00 9 00 12 00 15 00 18 00 21 00 MIDNIGHT Setting record for thermostat set for two events each day Event Number 1 2 25 0 C 21 1 C Off 15 0 C Format 8 30 17 30 Actual User Settings Monday to Friday 1 Monday 2 Tuesday 3 Wednesday 4 Thursday 5 Friday Pre set Programmes Saturday amp Sunday 17 30 Actual User Settings Saturday amp Sunday 6 Saturday 7 Sunday If the event time being setis moved past midnight into the following day then the number of the following day will blink Event 6 on day 6 s
10. et after midnight When using the button to adjust events 1 to 5 and the event time being adjusted becomes the same as the following event time then both are changed simultaneously This applies to all subsequent event times reached and is demonstrated in the diagram on the lower left When using the button to adjust events 2 to 6 and the previous event time is reached the button ceases to respond The factory pre set programme may be reinstated by pressing the recessed RESET button This will however reinstate all the factory pre set conditions so that the clock type and temperature scale may also have to be re set In the diagram opposite event 2 has been moved to 3 30PM Note that events 3 amp 4 have also been moved to that time and that the following control temperature will be that of event 4 Itis possible to move events past midnight into the following day when the day number will blink in the display see the display diagram in the notes on setting event times Electronic Programmable Heat Pump Thermostats HP75 1 with integral sensor HP75A 1 with remote sensor USER S GUIDE How to Select a 12 hour or a 24 hour clock display Select a F or a C temperature display Change between Standard Time and Daylight Savings Time at the press of a button Convert the HP75 to act as a thermostat controlling at the selected temperature continuously Heating Mode or Cooling Mode not both Use the HP75 as a
11. et temperatures Each press will change the temperature settings by 0 5 C or 1 F To make larger changes press the button and hold it down The temperatures can be raised until the cooling setpoint reaches 36 C 97 F or lowered until the heating setpoint reaches 5 C 41 F Note that the programmed dead band between the heating and cooling temperatures is maintained while the override is being used Fig 8 amp Fig 9 AUTO o HEAT Ba j Z OA Fig 8 ees ft l gt Temperature raised heating hae ll Ih system amp fan running on 1 AUTO HEAT Fig 9 j Temperature lowered cooling AUTO system amp fan running ON PROGRAM OVERRIDE While running in AUTO mode both the heating system and cooling system will be switched on and off to maintain the selected temperatures The SEL select button can be used to select one of three other paaa modes See Fig 10 OFF With HEAT selected only the AUTO heating system will be controlled i the cooling system being switched AUTO T off HEAT aa AUTO rt 0E With COOL selected only the m fl TLI cooling system will be controlled AUTO m bhi d the heating system being switched ON 1 off With OFF selected both heating eno and cooling will be switched off COOL except that the HP75 will switch rie on the heating system should the ON space temperature being sensed fall below 5 C 41 F FAN OVERRIDE eet Pressing the
12. note that for simplicity the diagrams in this setting instruction assume that the unit has been set in the 6 events per day mode The first event time and temperature is displayed together with the day or days when it is active Note that the day number s displayed will be that of the current day In 7 Day mode only a single day number will be displayed in 5 2 Day mode either 12345 or 67 will be displayed To go through the available events press and release the NEXT button While each event is on display it may be altered as required Selecting an event time 7 day mode Press and hold down the or buttons Cooling Heating to change the event time in ten minute Control Control Event No temp temp steps Press and release to change by one minute Selecting a heating temperature Press and release the A button to raise the HEATING control temperature by 0 5 C 1 F or press and release the V button to lower the HEATING control temperature by 0 5 C 1 F Press and hold down these buttons to make larger changes to the control temperature Time 5 2 day mode Cooling Heating Control Control Event No temp temp Selecting a cooling temperature Press and release the A button to raise the cooling control temperature by 0 5 C 1 F or press and release the Y button to lower the cooling control temperature Time by 0 5 C 71 F PROG EMHEAT NEXT DAY COPY Oo 0 Ou RESET BATTERY
13. sing the correct button and then re setting the clock by one hour as appropriate Refer to SETTING THE CLOCK TIME OR TEMPERATURE DISPLAY The default display in RUN mode shows the time of day This may be changed to display the actual temperature being sensed by pressing both COPY and NEXT buttons simultaneously Return to time display by pressing them simultaneously again AUTO E gt z ger anger Fig 5 HEAT or Temperature Display Space oe cll i L fr temperature is below the set AUTO m o temperature so the heating system ON and fan are operating THERMO TAT MODE The HP75 can be converted to control either heating or cooling not both ata constant user selected temperature by selecting Thermostat mode To do this press and hold down both A W buttons until the display changes to that shown in fig 6 When entering thermostat mode the default setting is heating only with a default temperature of 8 C 46 F this can be changed as required by pressing either A or Vv until the require temperature is displayed To control at a constant cooling temperature heat off press the SEL button to select COOL the temperature will be shown as 28 C 82 F fig 6a use the A and W buttons to select the required temperature When in thermostat mode if OFF is selected by means of the A button both heating and cooling are turned off To return to normal programmed operation press and hold both A and V AUTO A
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