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Mono CONTENTS Part 1 General Informa�on ................3 Part 2 Engineering Data ................19 Part 3 Installa�on and Field Se�ngs ............35...
Mono Part 1 General Informa�on 1 Mono System ..................... 4 2 Unit Capaci�es ................... 6 3 Nomenclature .................... 6 4 System Design and Unit Selec�on .............. 7 5 Typical Applica�ons ................... 9...
Mono 1 Mono System 1.1 System Schema�c Figure 1-1.1: System schematic Distributor M thermal Mono is an integrated air-to-water space hea�ng, space cooling and domes�c hot water heat pump system. Mono Outdoor Unit The outdoor heat pump system extracts heat from the outdoor air and transfers this heat through refrigerant piping to the Collector plate heat exchanger in the hydronic system.
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Mono 1.2 System Configura�ons Mono can be configured to run with the electric heater either enabled or disabled and can also be used in conjunc�on with an auxiliary heat source such as a boiler. The chosen configura�on affects the size of heat pump that is required. Three typical configura�ons are described below. Refer to Figure 1-1.2.
Mono 4 System Design and Unit Selec�on 4.1 Selec�on Procedure Step 1: Total heat load calcula�on Calculate condi�oned surface area Select the heat emi�ers (type, quantity, water temperature and heat load) Step 2: System configura�on Decide whether to include AHS and set AHS’s switching temperature Decide whether backup electric heater is enabled or disabled Step 3: Selec�on of outdoor units Determine required total heat load on outdoor units...
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Mono 4.2 Leaving Water Temperature (LWT) Selec�on The recommended design LTW ranges for different types of heat emi�er are: For floor hea�ng: 30 to 35⁰C For fan coil units: 30 to 45⁰C For low temperature radiators: 40 to 50⁰C 4.3 Op�mizing System Design To get the most comfort with the lowest energy consump�on with Mono, it is important to take account of the following considera�ons:...
Mono 5 Typical Applica�ons 5.1 Space Hea�ng The room thermostat is used as a switch. When there is a hea�ng request from the room thermostat, the Mono unit operates to achieve the target water temperature set on the user interface. When the room temperature reaches the thermostat’s set temperature, the unit stops.
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Mono 5.2 Space Hea�ng and DHW with solar system Space hea�ng without room thermostat connected to the unit. Domes�c hot water tank is connected to the unit, and the tank is with solar hea�ng system. Solar water pump is controlled by Tsolar temperature sensor. Balance tank temperature sensor is used to control on/off...
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Mono 5.3 Space Hea�ng, Cooling and DHW with solar system Space cooling and hea�ng applica�on with a room thermostat suitable for hea�ng/cooling changeover when connected to the unit. Hea�ng is provided through floor hea�ng loops and fan coil units. Cooling is provided through the fan coil units only.
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Mono 5.4 AHS provides heat for space hea�ng Space hea�ng applica�on by either the unit or by AHS connected in the system. If AHS only provides heat for space hea�ng, AHS must be integrated in the piping work. Figure 1-5.4: AHS provides heat for space heating 12.1 12.3 12.2...
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Mono 5.5 AHS provides heat for space hea�ng and DHW Space hea�ng applica�on by either the unit or by AHS connected in the system. Bivalent opera�on is possible for both space hea�ng opera�on and domes�c water hea�ng opera�on. If AHS is also providing heat for domes�c hot water, AHS can be integrated in the piping work.
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Mono 5.7 Dual setpoint func�on applica�on with two room thermostats Space hea�ng with two room thermostats applica�on is through floor hea�ng loops and fan coil units. The floor hea�ng loops and fan coil units require different opera�ng water temperature. The floor hea�ng loops require a lower water temperature in hea�ng mode compared to fan coil units.
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Mono 5.8 Dual setpoint func�on applica�on without thermostats Hea�ng is provided through floor hea�ng loops and fan coil units. The floor hea�ng loops and fan coil units require different opera�ng water temperatures. The floor hea�ng loops require a lower water temperature in hea�ng mode compared to fan coil units.
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Mono 5.9 Group control func�on for cooling, hea�ng and DHW Modularity is perfect when an extension of capacity becomes required as the building cooling/hea�ng demand evolves. 6 units can be controlled in group. The group control system can control and view the opera�on of the en�re system only by connec�ng the master to the wire controller.
The input Amps of compressor where MAX. Hz can operate for nominal cooling or hea�ng test condi�on kW: Rated Motor Output FLA: Full Load Amps. (A) 3 Dimensions and Center of Gravity Figure 2-2.1: KHC-22RX3, KHC-30RX3 dimensions and center of gravity (unit: mm)
Mono 6 Hydronic Performance Figure 2-6.1: KHC-22RX3, KHC-30RX3 hydronic performance Available external sta�c presurre VS Flow rate Flow rate (m Abbrevia�ons: ESP: External sta�c pressure Notes: I, II and III indicate water pump speed: I: Low II: Medium III: High.
7 Sound Levels 7.1 Overall Table 2-7.1: Sound pressure levels Model name dB(A) KHC-22RX3 59.8 KHC-30RX3 63.5 Notes: Sound pressure level is measured at a posi�on 1m in front of the unit and (1+H)/2m (where H is the height of the unit) above the floor in a semi-anechoic chamber.
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Mono 7.2 Octave Band Levels Figure 2-7.2: KHC-22RX3 octave band levels Outdoor air temperature 7⁰C DB, 85% R.H.; EWT 30⁰C, LWT 35⁰C NR-90 Outdoor air temperature 7⁰C DB, 85% R.H.; NR-80 EWT 40⁰C, LWT 45⁰ NR-70 NR-60 Outdoor air temperature 7⁰C DB, 85% R.H.;...
Mono 8 Accessories 8.1 Standard accessories Table 2-8.1: Standard accessories Name Shape Quan�ty Name Shape Quan�ty Installa�on and owner’s manual Tighten belt for customer wiring use Thermistor for domes�c hot water Opera�on manual tank(T5) * Technical data manual Extension wire for T5 Y-shaped filter Network matching wire Water outlet connec�on pipe assembly...
Mono 1 Preface to Part 3 Notes for Installers Boxes The informa�on contained in this Engineering Data Book may primarily be of use during the system design stage of a Mono project. Addi�onal important informa�on which may primarily be of use during field installa�on has been placed in boxes, such as the example below, �tled “Notes for installers”.
Mono 2 Installa�on Acceptance and Unpacking Notes for installers When units are delivered check whether any damage occurred during shipment. If there is damage to the surface or outside of a unit, submit a wri�en report to the shipping company. ...
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Mono that the controller’s wiring length limita�on will not be exceeded. In systems that are configured to heat domes�c hot water and/or include an external backup electric heater, outdoor units should be installed in posi�ons that are sufficiently close to the domes�c hot water tank and/or backup electric heater that the piping and temperature sensor wiring length come within the allowable ranges.
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Mono Figure 3-2.3: Installation room illustration In normal condition,refer to the figures below for install- ation of the unit: In case of strong wind and the wind direction can be foreseen,refer to the figures below for installation of the unit(any one is OK): Cold Climate Installa�on Turn the air outlet side toward the building's wall, fence In cold climate loca�ons installa�on should take account of the following...
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Mono Figure 3-2.5: Outdoor unit typical concrete base structure design (unit: mm) (unit: mm) Φ10 Expansion bolt Rubber shocking proof mat ≥100 Solid ground ≥80 Concrete basement or roofing h≥100mm Drainage Drainage ditch should be provided to allow drainage of condensate that may form on the air side heat exchanger when the unit is running in hea�ng mode or domes�c hot water mode.
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Mono Figure 3-2.8: Parallel connect the two units or above >300 >600 >3000 Figure 3-2.9: Parallel connect the front with rear sides >3000 >1000 >6000 >4000 >300...
Mono 3 Water Pipework Water Circuit Checks Mono units are equipped with a water inlet and outlet for connec�on to a water circuit. Mono units should only be connec- ted to closed water circuits. Connec�on to an open water circuit would lead to excessive corrosion of the water piping. Only materials complying with all applicable legisla�on should be used.
Mono To determine the maximum allowed water volume in the en�re circuit, proceed as follows: Determine the calculated pre-pressure (Pg) for the corresponding maximum water volume using the Figure 3-3.1. Figure 3-3.1: Maximum water volume A1: System without glycol A2: System with 25% propylene glycol Pre-pressure = pre-pressure of the expansion vessel Maximum water volume = maximum water volume in the system...
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Mono Cover the pipe end when inser�ng it through a wall to prevent dust and dirt entering. Use a good thread sealant for sealing the connec�ons. The sealing must be able to withstand the pressures and temperatures of the system. When using non-copper metallic piping, be sure to insulate the two kind of materials from each other to prevent galvanic corrosion.
Mono That the water treatment is correctly executed by a qualified water specialist. That a glycol with corrosion inhibitors is selected to counteract acids formed by the oxida�on of glycols. That in case of an installa�on with a domes�c hot water tank, only the use of propylene glycol is allowed. If the system does NOT contain a domes�c hot water tank, then you can use either propylene glycol or ethylene glycol;...
Mono 4 Electrical Wiring General Notes for installers Cau�on All installa�on and wiring must be carried out by competent and suitably qualified, cer�fied and accredited professionals and in accordance with all applicable legisla�on. Electrical systems should be grounded in accordance with all applicable legisla�on. ...
Mono A dedicated power circuit is required for the backup electric heater. Installa�on equipped with a domes�c hot water tank (field supplied) requires a dedicated power circuit for the immersion heater. Lay out the electrical wiring so that the front cover does not rise up when doing wiring work and a�ach the front cover securely.
Mono Table 3-4.1: Wiring requirements Item Descrip�on Current Required number of conductors Maximum running current Solar energy kit signal wire 200mA User interface wire 200mA Room thermostat wire 2 or 3 200mA Boiler control wire 200mA Temperature sensor wire for Tw2 Control wire for DHW PUMP 200mA Control wire for 3-way valve...
Mono 6 Internal Circulation Pump Speed Se�ngs The internal circula�on pump speed can be selected by adjus�ng the red knob on the pump. The default factory se�ng is the highest speed (III). If the system water flow is too high, the pump speed can be set to medium (II) or low (I). The rela�onship between external sta�c pressure and water flow rate is described in Part 2, 7 “Hydronic Performance”.
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Mono Warning signals The warning signal is indicated by the LED display. The fault signal LED and the SSM relay do not respond. The pump con�nues to run with limited output. The indicated faulty opera�ng status must not occur for a prolonged period. The cause must be eliminated. Figure 3-6.4: Warning signals Code No.
Mono 7 User Interface Field Se�ngs Introduc�on During installa�on, the heat pump se�ngs and parameters should be configured by the installer to suit the installa�on configura�on, climate condi�ons and end-user preferences. The relevant se�ngs are accessible and programmable through the FOR SERVICEMAN menu on the user interface. The user interface menus and se�ngs can be navigated using the user interface’s touch-sensi�ve keys, as detailed in Table 3-7.1.
Mono FOR SERVICEMAN Menu FOR SERVICEMAN allows installers to input the system configura�on and set Figure 3-7.2: FOR SERVICEMAN password screen the system parameters. To enter FOR SERVICEMAN, go to MENU > FOR FOR SE RVICEMAN SERVICEMAN. Please input password: Enter the password, using ◄...
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Mono Only when the space hea�ng/cooling is OFF will the heat pump operate to heat domes�c water. DHW PUMP sets whether or not the DHW pump is controlled by the Mono unit. If the DHW pump is to be controlled by the Mono, select YES.
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Mono t_INTERVAL_DHW sets the DHW mode compressor re-start delay. When the compressor stops running, it will not re-start un�l at least t_INTERVAL_DHW minutes have elapsed. dT5_TBH_OFF sets the temperature difference between the DHW set temperature (T5S) and the DHW tank water temperature (T5) below which the immersion is not used.
Mono PUMP_D TIMER sets whether or not the user is able to set the DHW pump (field supply) in DHW mode. For installa�ons with a DHW pump, select ON so that the user is able to set pump start �mes. PUMP_D RUNNING TIME sets the length of �me the pump runs for at each of the user-specified start �mes on the DHW PUMP tab on the DOMESTIC HOT WATER (DHW) menu, if TIMER RUNNING is enabled.
Mono 7.8 “TEMP. TYPE SETTING Menu”. t_INTERVAL_C sets the cooling mode compressor re-start delay. When the compressor stops running, it will not re-start un�l at least t_INTERVAL_C minutes have elapsed. T1SetC1 sets the temperature 1 of automa�c se�ng curve for cooling mode. T1SetC2 sets the temperature 2 of automa�c se�ng curve for cooling mode.
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Mono dT1SH sets the temperature difference between the heat pump leaving water Figure 3-7.16: dTSH temperature (T1) and the heat pump leaving water set temperature (T1S) above which the heat pump provides heated water to the space hea�ng terminals. Note: Only when ROOM TEMP is enabled will this func�on be available dTSH sets the temperature difference between the actual room temperature (Ta) and set room temperature (TS) above...
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Mono TEMP. TYPE SETTING Menu MENU > FOR SERVICEMAN > TEMP. TYPE SETTING Figure 3-7.19: TEMP. TYPE SETTING menu The TEMP. TYPE SETTING is used for selec�ng whether the water flow 5 TEMP. TYPE SETTING 5.1 WATER FLOW TEMP. temperature or room temperature is used to control the ON/OFF of the heat 5.2 ROOM TEMP.
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Mono Figure 3-7.23: DOUBLE ZONE to YES and set ROOM TEMP. to NON meanwhile set WATER FLOW TEMP. to YES or NON ◄ Homepage (zone 1) Addi�on page (zone 2) If set DOUBLE ZONE and ROOM TEMP. to YES, meanwhile set WATER FLOW TEMP. to YES or NON, the following page will be displayed.
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Mono 7.10 OTHER HEATING SOURCE Menu 7.10.1 OTHER HEATING SOURCE menu overview MENU > FOR SERVICEMAN > OTHER HEATING SOURCE Figure 3-7.26: OTHER HEATING SOURCE menu 7 OTHER HEATING SOURCE 7.1 dT1_IBH_ON 5°C 7.2 t_IBH_DELAY 30MIN 7.3 T4_IBH_ON -5°C 7.4 dT1_AHS_ON 5°C 7.5 t_AHS_DELAY 30MIN...
Mono 7.11 HOLIDAY AWAY SETTING Menu MENU > FOR SERVICEMAN > HOLIDAY AWAY SETTING Figure 3-7.29: HOLIDAY AWAY SETTING menu The HOLIDAY AWAY SETTING menu se�ngs are used to set the outlet water 8 HOLIDAY AWAY SETTING temperature to prevent water pipes freezing when away from home in cold 8.1 T1S_H.A._H 20°C weather seasons.
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Mono 7.14 TEST RUN 7.14.1 TEST RUN Menu overview MENU > FOR SERVICEMAN > TEST RUN TEST RUN is used to check that the valves, air purge func�on, circula�on pump, space cooling mode, space hea�ng mode and DHW mode are all opera�ng correctly. Figure 3-7.32: TEST RUN start screen and TEST RUN menu 11 TEST RUN 11 TEST RUN...
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Mono 7.14.3 AIR PURGE opera�on MENU > FOR SERVICEMAN > TEST RUN > AIR PURGE Once installa�on is complete it is important to run the air purge func�on to remove any air which may be present in the water piping and which could cause malfunc�ons during opera�on. Figure 3-7.35: AIR PURGE operation The AIR PURGE opera�on is used to remove air from the water piping.
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Mono 7.14.6 HEAT MODE RUNNING opera�on Figure 3-7.38: HEAT MODE RUNNING display The HEAT MODE RUNNING opera�on is used to check the opera�on of the 11 TEST RUN system in space hea�ng mode. Test run is on. Heat mode is on. During the HEAT MODE RUNNING opera�on the Mono unit leaving water set Leaving water temperature is 15°C.
Mono 7.15 SPECIAL FUNCTION Figure 3-7.40: Special functions menu 7.15.1 SPECIAL FUNCTION menu overview 12 SPECIAL FUNCTION 12 SPECIAL FUNCTION MENU > FOR SERVICEMAN > SPECIAL FUNCTION 12.1 PREHEATING FOR FLOOR ACTIVE THE SETTINGS AND ACTIVE THE “SPECIAL FUNCTION”? 12.2 FLOOR DRYING UP SPECIAL FUNCTION is used to pre-hea�ng floor and drying up floor once installa�on is complete or the first �me start up the unit or restart the unit a�er a long �me...
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Mono Figure 3-7.43: Preheating for floor screens 12.1 PREHEATING FOR FLOOR 12.1 PREHEATING FOR FLOOR Preheat for floor is Do you want to turn off the preheating running for 25 minutes. for floor function? Water flow temperature is 20°C. CONFIRM CONFIRM 7.15.3 FLOOR DRYING UP MENU >...
Mono 7.16 AUTO RESTART MENU > FOR SERVICEMAN > AUTO RESTART Figure 3-7.47: AUTO RESTART menu 13 AUTO RESTART AUTO RESTART sets whether or not the unit re-applies the user interface se�ngs 13.1 COOL/HEAT MODE when the power returns following a power failure. Select YES to enable auto restart or 13.2 DHW MODE NON to disable auto restart.
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Mono F-PIPE LENGTH sets the length of refrigerant pipes between outdoor unit and indoor unit. RT/Ta_PCB sets whether M-kit is valid. Pump silent mode can decrease water pump maximum output by 5% in order to decrease the noise of heat pump. DFT1/DFT2 sets DFT1 and DFT2 port of the hydro module as DEFROST or Alarm ALARM func�on can be valid only with IDU so�ware version higher than V99)
Mono 8 Opera�on parameter MENU > OPERATION PARAMETER This menu is for installer or service engineer reviewing the opera�on parameters. There are nine pages for the opera�ng parameter as following Figure 3-9.1: Operation parameter OPERATION PARAMETER OPERATION PARAMETER OPERATION PARAMETER ONLINE UNITS NUMBER PUMP-O GAS BOILER...
When the product is connected to the network, please make sure that the phone is as close as possible to the product. KAISAI only supports 2.4GHz band routers at present. Special characters (punctua�on, spaces, etc.) are not recommended as part of the WLAN name. It is recommended that you connect no more than 10 devices to a single router lest home appliances are affected by weak or unstable network signal.
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Mono Log in or register In case of a new user registra�on it is necessary to enter a verifica�on code sent to the specified e-mail address. Accept the privacy policy and condi�ons for using the applica�on...
Mono Wi-Fi connec�on Device management Network name and password From the applica�on, you can may not contain add new devices or manage exis�ng ones. languagespecific or special characters.
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Mono AP mode on the controller Choose the right arrow on the controller to go to the AP mode. When the Wi-Fi icon starts to flash, move forward.
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Mono No access to the Internet Confirm the message displayed on the phone’s screen by choosing OK.
Mono 10 USB func�on guidelines 10.1 Parameters se�ng transfer between wired controllers Installer can quickly copy the wired controller parameter se�ngs from unit A to unit B via USB disk, which save the �me of on-site installa�on. Steps are as follows: Step 1: Plug U disk into the port of hydronic PCB of A unit.
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Mono 10.2 Convenient program upgrade for unit There is no need to carry any heavy equipment but only USB disk can realize program upgrade. Steps are as follows: Step 1: Copy new program in U disk root directory where other files in bin format are not allowed in Step 2: Power on and make sure communica�on is normal.
Mono 11 Appendix 11.1 Environment Temperature Curves The climate related curves can be selected in the user interface, MENU > PRESET TEMPERATURE > WEATHER TEMP. SET. Figure 3-11.1: WEATHER TEMP.SET menu In cooling/mode mode, eight curves which are already set in the user interface can PRE SET TEMPERATURE be selected.
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Mono Figure 3-11.3: High temperature curves for heating mode T1S(℃) Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 T4(℃) -30 -25 -20 -15 -10 Notes: It only has the curves of the high temperature se�ng for hea�ng, if the high temperature is set for hea�ng. Curve 4 is default in high temperature hea�ng mode and curve 6 is default in ECO mode.
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Mono Figure 3-11.5: High temperature curves for cooling mode T1S(°C) Curve 1 Curve 2 Curve 3 Curve 4 Curve 5 Curve 6 Curve 7 Curve 8 T4(°C) Notes: It only has the curves of the high temperature se�ng for cooling, if the high temperature is set for cooling. Curve 4 is default in high temperature cooling mode.
Mono 12 Error Code Table Table 3-12.1: Error code table Error code Content PED PCB fault High temp. protec�on of inverter module Water flow fault (E8 displayed 3 �mes) Phase loss or neutral wire and live wire are connected reversely (only for three phase unit) Communica�on fault between controller and main control board of hydraulic module Final outlet water temp.
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Mono Inverter module protec�on An�-freeze mode protec�on High temperature protec�on of refrigerant outlet temp. of condenser Water inlet temperature is higher than water outlet in hea�ng mode DC compressor inverter module fault DC bus low voltage protec�on (from inverter module mostly when compressor running) DC bus high voltage protec�on from DC driver MCE fault Zero speed protec�on...
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