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Z1 Pilot Hydraulic pilot for heat pumps Installation manual Z1 Pilot 78 liters - 10 hydraulic outlets Ref. 753041 Made in France Manual ref. : 1898978 Edition n° : 23.38...
1 - SAFETY Danger resulting from improper qualifi cations Danger of death if the pressure relief valves are missing or defective • Any work carried out by an unqualifi ed person can result in damage to the installation or in A defective pressure relief valve may prove physical injury.
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(see § Connecting the pressure relief valve). Maintenance - Troubleshooting Maintenance and cleaning of the pilot must be carried out at least once a year by a qualifi ed professional. PILOT MANUAL...
Admissible storage and transport temperatures are from -20°C to +60°C. The Z1 Pilot must be stored in its packaging. It must be transported This technical installation manual forms part of the appliance which empty of water, horizontally, in its original packaging.
• Ambient temperature thermostat radio non- chronoproportional -TH (on/off type). Wireless, programmable thermostat, transmitting through radio-frequency. Necessary when a wired connection between the Z1 Pilot and the ambient temperature thermostat is not possible (Ref. 770001) • Thermo-Net gateway Communication gateway for remote comfort control via an Internet box.
4 - INSTALLATION • Heat pump hydraulic branch For models below 40kW with PWM circulator Ref. 754205 4.1 - Placement choice • 6kW Electrical back-up Ref. 754105 4.1.1 - Appropriate placement choice • V3V start sensor The Pilot must be placed in an area which is free from frost and adverse weather conditions.
Suffi cient fl ow must be ensured in the circuits connected to the Z1 pilot. In the case of an installation with thermostatic valves, this check must be carried out with all the valves open. The power actually required will determine the fl ow of heating water and, by the same token, the calculation of the distribution network.
4.2.1.7 - Frost protection Central heating installations must be Frost protection is necessary if the pilot is switched off during the cleaned in order to eliminate debris (copper, winter months (ex: secondary residence, etc...). fi lings, soldering waste) related to the set-up of the installation or from chemical reactions between the If the pilot is connected to electricity, metals.
4.2.1.10 - Installation of the DHW circuit mandatory It is to refer to the technical manual provided with each water tank. mandatory It is to install a safety group on the cold water inlet of each water tank. Do not place a stop valve between the safety group and the water tank. •...
4.2.1.13 - Water inlet fi lter for each heat pump (supplied) mandatory It is to install the 1’’ 1/4 fi lter with incorporated 500μm fi lter on the water inlet pipe of each heat pump : • Mind the fl ow direction of the fi lter. (arrow). •...
4.2.2.2.2 - Connection of the circulators in 4.2.2.2.3 - Circulator speed adjustment the source circuits Le réglage de la vitesse des circulateurs - selon le modèle - est détaillé The flow rate in the sending circuits is provided by the AUTO dans la notice fournie avec les branches hydrauliques.
4.2.2.4 - Underfl oor heating connection 4.3 - Electrical connections 4.2.2.4.1 - Connecting one or more 4.3.1 - Power electrical connections underfl oor heating systems If the installation includes one or more underfl oor heating systems, the circuit(s) must be fi tted with the following components: The rules and regulations in the country of - AUTO hydraulic branch (Ref.
A dedicated switch/circuit breaker should be installed in the It is MANDATORY to read the installation electrical panel to supply the Z1 Pilot. It must allow total mains manual provided with each HRC heat disconnection (all-pole) to eliminate any danger during maintenance pump.
Plan for the appropriate length of cable between the pilot and the Ensure that the connecting cable heat pump. Do not hesitate to cut the cable to the appropriate is distanced from any source of length to AVOID LOOPS. electrical disturbance (ex: washing machine, neon lighting, power supply cable..) It is IMPERATIVE...
4.3.7 - Connection of electrical back-up (optional) The 6kW (3x2kW) electric back-up (Ref. 754105) complements the heat pump on the coldest days. Be sure to turn off the power when connecting the electrical back-up. Be sure to install the electrical back-up heater when the tank is empty of water. 1.
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7. Connect the link cable between the power board and the display board. (See diagram below) 8. Remove the pre-cut cover on the side of the housing and screw the thermal cut-out into the hole provided. Place the bulb in the pocket above the pilot and connect the thermal cut-out to the power board (see diagram below). Connect the wires to terminals A1 and A2 on the thermal overload protection.
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For single-phase connection, the phase must be connected to terminal P3. Connect the phase distribution bridges supplied in the plastic bag to connectors X2 and X3 (see the four colored and numbered lugs in the diagram below). The phase must be connected to terminal P3 and not to terminals P1 or P2. For three-phase connection, the phases must be connected to terminals P1, P2 and P3.
The electrical back-up and the Z1 pilot must be supplied by two separate supply circuits. Electrical auxiliaries must be protected by a dedicated single-pole + neutral or double-pole circuit breaker, depending on the type of installation and its electrical protection requirements (single-phase connection) or four- pole (three-phase connection), independently of the Z1 pilot supply circuit.
Z1 pilot. The OPT is compulsory to protect the underfl oor heating system in the event of overheating. 4.4.3 - Exterior sensor The manually reset 65°C OPT must be installed on the underfl oor...
5 - SET-UP 5.3 - Starting set-up This factory setting must be changed, if necessary, in the «Installer» Menu. Set-up must be done by a qualifi ed professional. 5.1 - Before set-up Ensure that: - All work carried out on the hydraulic circuits and the electrical circuits are in compliance with the regulations in effect (inspection by a qualifi ed professional) When the Pilot is turned on for the fi rst time, it will ask you to confi rm...
5.3.4 - Step 4 : Purging the installation The purging cycle activates the circulator pump at an alternating rhythm to allow AIR BLEED the displacement and purging of any air bubbles accumulated at high points of the installation using the Pilot’s automatic purger.
6 - SETTINGS AND FUNCTIONS 6.1 - Control panel 6.1.1 - Keypad Primary function Secondary function (short press) (long press) - menu access locking / unlocking of the - return / cancel keypad - switch on standby mode - setting the program scheduled temperatures comfort modes...
- OUTS.TMIN : Outside temperature on the coldest day (return to factory settings) press for 5s - MODE : Choice of Z1 pilot operation : HP only operation HP+B ACKUP : Operation with the heat pump and authorised back-up BACK up...
6.4 - List of adjustable parameters Factory Parameter N° Description Unit Range of setting setting P202 11 to 25 Maximum exterior temperature (warmest day for heat curve) °C P203 -30 to 10 Minimum exterior temperature ( (coldest day for heat curve)) °C auto: changeover is done automatically based on the P204...
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Factory Parameter N° Description Unit Range of setting setting P226 Choice for pressure sensor do not change the setting P227 10 to 100 Speed of heat pump circulator pump P228 Post-circulation of the heat pump circulator pump Do not change the setting P230 Not concerned auto: automatic set temperature from the air sensor or...
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Factory Parameter N° Description Unit Range of setting setting Underfl oor heating circuit - Complementary self- oui : correction enabled p259 adaptability: automatic correction of the temperature on a non : correction disabled 3h cycle of room temperature Underfl oor heating circuit (mixed circuit option) - Room P267 0,1 to 1 temperature hysteresis (requires a room sensor): room...
6.5.1.2 - Lowering of the temperature 6.5 - Description of functionalities The set temperature of heating can be lowered at the same time as 6.5.1 - Functions related to heating the ambient temperature when in Eco or Frost protection modes to improve the heat pump’s performance.
6.5.2.2 - Automatic summer/winter changeover 6.5.4 - Functions related to the production of domestic hot water With the automatic summer/winter changeover function activated, the pilot decides when to enact the changeover from one season 6.5.4.1 - Domestic priority sharing to another, independently from the choice made by the user via Allows the operation of the heating circuit at the end of the domestic the on/off button.
7 - MAINTENANCE AND * If the USB stick is not recognized, disconnect and reconnect the electrical supply to the appliance and try again. If the USB stick is still not being recognized, try a diff erent USB stick. TROUBLESHOOTING In the user menu, the USB sub-menu allows you to set the frequency of monitoring of operating history (every minute, every 30 seconds..).
7.1.3 - Water sensors Counter n° Description Unit Ohmic values for T_pilote (pilot outlet) and T_water (domestic water C-28 Activation of high pressure switch for compressor n°2 quantity sensor placed in the tank) sensors Activation of low pressure switch for refrigerant C-29 quantity fl uid...
7.1.7 - Errors indicated by the pilot Press to stop the sound signal (the error persists) Whatever the number of connected heat pumps, errors denomination is the same. If several heat pumps are connected, error alternately appears with the heat pump which is concerned. Display Error Possible causes...
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Press for 2 seconds to remove the errors manually (indicated by «press »). Display Error Possible causes Consequences Reset - The hydraulic connection between the heat pump rev. flow Flow rate is reversed and the pilot is reversed heat pump stopped* manual - The heat pump’s inlet and outlet sensors are reversed - The heat pump’s evaporator or the grills of the...
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Display Error Possible causes Consequences Reset - The exterior sensor is badly positioned and is being ext. senso. Exterior sensor placement error infl uenced by heat or cold sources informative message manual diag - The exterior sensor or the air sensor is defective automatic after PRES Sure Lack of water pressure...
9 - WARRANTY 9.2.2.2 - Handling Cases (not limited) for exclusion from warranty: • Any damage sustained by impacts or falls during handling after delivery from the factory. 9.1 - Warranty coverage • Deterioration in the condition of the appliance after handling where the instructions in the manual have not been followed.
APPENDIX A1 - Technical specifi cations A1.1 - General characteristics A1.3 - Dimensions Electrical supply 230 V mono Power supply cable cross- 3G 2,5 mm² section Circuit braker 10 A Buff er tank 78 L Dimensions (W x H x D) 410 x 1512 x 536 Weight when empty 50 kg...
A2 - Hydraulic connections between the pilot and the heat pumps A2.1 - HRC 20kW heat pump Minimum Ø of piping to respect Steel Copper Multilayer If distance between HP and Pilot < 10m 1’’ 25/28 26/32 26/32 (the equivalent of 20m linear of loss of load) If distance between HP and Pilot >...
A2.4 - HRC 40kW heat pump Minimum Ø of piping to respect Steel Copper Multilayer If distance between HP and Pilot < 10m 1’’1/4 32/35 42/50 40,8/50 (the equivalent of 20m linear of loss of load) If distance between HP and Pilot > 10m and < 20m 1’’1/2 38/40 42/50...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot 230V single-phase power supply Regulation Only with HRC <= 32kW 3G 2.5 power supply...
S : Z1 valve VA : Shut-off valve DRD : Flow adjuster P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <= 32kW PILOT MANUAL...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <= 32kW 3G 2.5 power supply...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot 230V single-phase power supply Regulation Only with HRC <= 32kW 3G 2.5 power supply...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <= 32kW 3G 2.5 power supply...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <= 32kW 3G 2.5 power supply...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <=32kW 3G 2.5 power supply tab n°1 lowered...
S : Z1 valve VA : Shut-off valve VEQ : balancing valve P : Z1 purger VCB : Mud fl ush valve : Limit of supply Z1 pilot Regulation 230V single-phase power supply Only with HRC <=32kW 3G 2.5 power supply tab n°1 lowered...
A4 - Wiring diagram A4.1 - Wiring diagram without electrical back-up : Ambient thermostat : Ambient temperature sensor AQS : Aquastat ModBUS cable connection : Brown : White GND : Black * Dry contact to be connected to room control input of boiler back-up. ** Do not disconnect the shunt mounted on the board.
A.5 -Settings and functions A.5.1 - Control panel A.5.1.1 - Keypad Primary function Secondary function (short press) (long press) - menu access locking / unlocking of the - return / cancel keypad - switch on standby mode - setting the program scheduled temperatures comfort modes...
- OUTS.TMIN : Outside temperature on the coldest day (return to factory settings) press for 5s - MODE : Choice of Z1 pilot operation : HP only operation HP+B ACKUP : Operation with the heat pump and authorised back-up BACK up...
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