Daikin EKMBUHCA3V3 Installation Manual

Also see for EKMBUHCA3V3: Installer's reference guide Service manual User reference guide User reference guide Installer's reference guide

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Daikin EKMBUHCA3V3 Installation Manual Manual pdf 6 page image

5 Starting up the systemInstallation manual6EKMBUHCA3V3 + EKMBUHCA9W1Daikin Altherma low temperature monobloc backup heater4P405547-1C – 2015.08Backup heatertypeConnections tobackup heater powersupplyConnections toterminals3 kW 1~ 230 V(*9W)6 kW 1~ 230 V(*9W)LL NNF1B1 2 3 4 5 6X14M6 kW 3N~ 400 V(*9W)9 kW 3N~ 400 V(*9W)F1BL1 L2 L31 2 3 4 5 6X14M3 Fix the cable with cable ties to the cable tie mountings.INFORMATIONFor more information on the backup heater types, and forhow to configure the backup heater, refer to the"Configuration" chapter of the installation manual of theoutdoor unit.During connection of the backup heater, miswiring is possible. Todetect possible miswiring on the *9W model, it is highlyrecommended to measure the resistance value of the heaterelements. Depending on the different backup heater types, followingresistance values (see table below) should be measured. ALWAYSmeasure the resistance on the contactor clamps K1M, K2M, andK5M.3 kW1~ 230 V6 kW1~ 230 V6 kW3N~400 V9 kW3N~400 VK1M/1 K5M/13 52.9Ω 52.9Ω ∞ ∞K1M/3 ∞ ∞ 105.8Ω 105.8ΩK1M/5 ∞ ∞ 105.8Ω 105.8ΩK1M/3 K1M/5 26.5Ω 26.5Ω 105.8Ω 105.8ΩK2M/1 K5M/13 ∞ 26.5Ω ∞ ∞K2M/3 ∞ ∞ 52.9Ω 52.9ΩK2M/5 ∞ ∞ 52.9Ω 52.9ΩK2M/3 K2M/5 52.9Ω 52.9Ω 52.9Ω 52.9ΩK1M/5 K2M/1 ∞ ∞ ∞ ∞Example measure resistance between K1M/1 and K5M/13:K1M K2MK2M1 3 5 132 4 6 14K5M1 3 5 132 4 6 141 3 5 132 4 6 14ΩΩ4.4.3 To connect the backup heater kit to thecontrol box1 For the thermistor, connect 2 wires between backup heaterterminals X15M/1+2 and control box terminals X2M/5+6.2 For the thermal protector, connect 2 wires between backupheater terminals X15M/3+4 and control box terminalsX2M/11+12.3 For the connection with the control box, connect 3 wiresbetween backup heater terminals X15M/5+6+7 and control boxterminals X2M/13+14+15.X2MX8MX1MX15MA4PF1B1413121165151 2 3 4 5 6 74 Fix the cable with cable ties to the cable tie mountings.INFORMATION▪ For details about the connections, refer to the wiringdiagram.▪ Use a multi-core cable.▪ For backup heater kit EKMBUHCA3V3, it is NOTrequired to make a connection between backup heaterterminal X15M/6 and control box terminal X2M/14.5 Starting up the systemFor instructions on how to configure and commission the system,and hand it over to the user, refer to the installation manual of theoutdoor unit.

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