{"product_id":"solax-thermal-r290-3-phase-hydraulic-unit-stn3-c02-3-6kw","title":"SolaX Thermal R290 3-Phase Hydraulic Unit | STN3-C02 | 3+6kW","description":"\u003c!-- SEO Product Name: SolaX Thermal R290 3-Phase Hydraulic Unit | STN3-C02 | 3+6kW --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; margin:0 auto; color:#2B2B2B; line-height:1.6; font-family:Arial, Helvetica, sans-serif;\"\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eThe \u003cstrong\u003eSolaX Thermal R290 3-Phase Hydraulic Unit\u003c\/strong\u003e (\u003cstrong\u003eSTN3-C02\u003c\/strong\u003e) is the \u003cstrong\u003ewall-mounted indoor unit\u003c\/strong\u003e for the SolaX Thermal R290 heat pump range, for \u003cstrong\u003ethree-phase systems\u003c\/strong\u003e (\u003cstrong\u003e380-415V\u003c\/strong\u003e) with an \u003cstrong\u003eexisting or separately installed hot water cylinder\u003c\/strong\u003e. It combines the indoor control board and a \u003cstrong\u003e4 inch high-resolution touch panel\u003c\/strong\u003e with the hydraulic components in one compact unit.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eInside are a \u003cstrong\u003e3kW + 6kW backup heater\u003c\/strong\u003e, an \u003cstrong\u003e8 litre expansion tank\u003c\/strong\u003e and a \u003cstrong\u003esolenoid 3-way valve\u003c\/strong\u003e. Connections are \u003cstrong\u003eG1 inch and G1-1\/4 inch\u003c\/strong\u003e, and it communicates over \u003cstrong\u003eWiFi, Ethernet and RS485\u003c\/strong\u003e, so the \u003cstrong\u003eSolaX Smart App\u003c\/strong\u003e can provide remote monitoring, operation and \u003cstrong\u003eOTA updates\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp style=\"font-size:16px; line-height:1.7; color:#2B2B2B; margin:0 0 16px 0;\"\u003eIt measures \u003cstrong\u003e420 x 700 x 265mm\u003c\/strong\u003e and weighs \u003cstrong\u003e33kg empty\u003c\/strong\u003e, and it works with the \u003cstrong\u003eSTU3 R290 outdoor units\u003c\/strong\u003e from \u003cstrong\u003e8kW to 16kW\u003c\/strong\u003e to give heating, cooling and domestic hot water from a monobloc system.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:20px 0 24px 0;\"\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eSTN3-C02\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eSolaX Model Code\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e3kW + 6kW\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eBackup Heater\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e8 litre\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eExpansion Tank\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e13.5A\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eRated Current \/ Phase\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e4 inch\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eTouch Panel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1; min-width:130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:16px 10px; text-align:center; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e33kg\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; font-weight:400; margin-top:4px; letter-spacing:.02em;\"\u003eWeight (Empty)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#E0942A; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003eYou Still Need a Hot Water Cylinder\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eThis unit is for homes with an \u003cstrong\u003eexisting or self-installed hot water cylinder\u003c\/strong\u003e. It does not include one. If you want the cylinder supplied with the indoor unit, SolaX's \u003cstrong\u003eHydraulic Integrated Unit\u003c\/strong\u003e has a \u003cstrong\u003e190-litre\u003c\/strong\u003e cylinder built in, and if you only need the controller there is the \u003cstrong\u003eControl Unit\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FFF6E5; border-left:4px solid #E0942A; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#E0942A; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003eCheck Your Electrical Supply\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eThe rated current is \u003cstrong\u003e13.5A per phase\u003c\/strong\u003e on a \u003cstrong\u003e380-415V\u003c\/strong\u003e supply. The supply cable and protective device must be sized by a \u003cstrong\u003equalified electrician\u003c\/strong\u003e to \u003cstrong\u003eBS 7671\u003c\/strong\u003e, and the \u003cstrong\u003eoutdoor unit\u003c\/strong\u003e has its own supply requirements, so check both in the SolaX installation manuals.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#FDECEC; border-left:4px solid #D32F2F; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#D32F2F; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003eImportant Safety Information\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eInstallation must be carried out by suitably qualified engineers, with electrical work to \u003cstrong\u003eBS 7671\u003c\/strong\u003e and \u003cstrong\u003ePart P\u003c\/strong\u003e. The system uses an outdoor unit charged with \u003cstrong\u003eR290 (propane)\u003c\/strong\u003e, so follow the SolaX manuals on flammable refrigerant, and follow \u003cstrong\u003eMCS\u003c\/strong\u003e standards for MCS-certified installs. Any \u003cstrong\u003eunvented\u003c\/strong\u003e hot water cylinder connected to the system must be installed in line with \u003cstrong\u003ePart G\u003c\/strong\u003e of the Building Regulations by a \u003cstrong\u003eG3-qualified\u003c\/strong\u003e installer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E6F4F3; border-left:4px solid #008377CF; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#008377CF; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003e1-Phase and 3-Phase Versions\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eThis is the \u003cstrong\u003ethree-phase STN3-C02\u003c\/strong\u003e. The \u003cstrong\u003esingle-phase STN1-C02\u003c\/strong\u003e (220 to 240V, 39.5A) has the same size, weight and specification, and differs only in supply and rated current.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; margin:0 0 24px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eBackup Heater Built In\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eA \u003cstrong\u003e3kW + 6kW electric backup heater\u003c\/strong\u003e is built into the unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eHydraulic Components Included\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eAn \u003cstrong\u003e8 litre expansion tank\u003c\/strong\u003e and a \u003cstrong\u003esolenoid 3-way valve\u003c\/strong\u003e are built in alongside the control board.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003e4 Inch Touch Panel\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eA \u003cstrong\u003e4 inch high-resolution touch panel\u003c\/strong\u003e gives local control of heating, cooling and hot water.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eConnected \u0026amp; Updatable\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003e\n\u003cstrong\u003eWiFi, Ethernet and RS485\u003c\/strong\u003e connections, with \u003cstrong\u003eremote monitoring, operation and OTA updates\u003c\/strong\u003e through the SolaX Smart App.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eFor Existing Cylinders\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003eDesigned for homes with an \u003cstrong\u003eexisting or self-installed\u003c\/strong\u003e hot water cylinder, so you keep your current storage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; background:#F7FAFA; border:1px solid #D9EDEA; border-radius:8px; padding:16px; margin:4px;\"\u003e\n\u003cdiv style=\"font-size:15px; font-weight:700; color:#008377CF; margin-bottom:6px;\"\u003eCompact Wall Mounting\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px; color:#444444; line-height:1.6;\"\u003e\n\u003cstrong\u003e420 x 700 x 265mm\u003c\/strong\u003e and \u003cstrong\u003e33kg empty\u003c\/strong\u003e, mounted on the wall rather than taking floor space.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; overflow:hidden; margin:0 0 24px 0; overflow-x:auto;\"\u003e\n\u003cdiv style=\"display:flex; background:#008377CF;\"\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eIndoor Unit\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eRated Current\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eInstallation\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eSize (W x H x D)\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eWeight\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:12px; font-weight:700; color:#ffffff; text-transform:uppercase; letter-spacing:.04em;\"\u003eHot Water Cylinder\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8;\"\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003eHydraulic Unit STN3-C02 (this product)\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e13.5A per phase\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003eWall\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e420 x 700 x 265mm\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e33kg\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003eExisting or separate\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF;\"\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003eHydraulic Integrated Unit STN3-C03\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e17.5A per phase\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003eFloor stand\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e595 x 1875 x 700mm\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e186kg\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px; font-size:14px; color:#222222; border-bottom:1px solid #D9EDEA;\"\u003e190 litres built in\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#E6F4F3; border-left:4px solid #008377CF; border-radius:6px; padding:14px 18px; margin:0 0 20px 0;\"\u003e\n\u003cdiv style=\"font-size:14px; font-weight:700; color:#008377CF; text-transform:uppercase; letter-spacing:.04em; margin-bottom:6px;\"\u003eAbout the Table\u003c\/div\u003e\n\u003cdiv style=\"font-size:15px; color:#2B2B2B; line-height:1.6;\"\u003eThe three-phase indoor units are shown. SolaX lists one Control Unit, the \u003cstrong\u003eSTN1-C01\u003c\/strong\u003e, on a single-phase supply, so check with SolaX whether it suits a three-phase system. Weights for the Hydraulic Unit are without water.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; overflow:hidden; margin:0 0 24px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eElectrical\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eProduct code\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eSTN3-C02\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003ePower supply\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e380 to 415V \/ 3N~ \/ 50Hz\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eRated current\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e13.5A per phase\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eBackup heater capacity\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e3kW + 6kW\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eHydraulic\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eExpansion tank\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e8 litres\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eValve\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eSolenoid 3-way valve\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003ePiping connections\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eG1\" \/ G1-1\/4\"\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eInterface \u0026amp; Communication\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eUser interface\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e4 inch high-resolution touch panel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eCommunication\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eWiFi \/ Ethernet \/ RS485\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eInstallation \u0026amp; Mechanical\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eInstallation\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eWall mounting\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eDimensions (W x H x D)\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e420 x 700 x 265mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eWeight (empty)\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003e33kg\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; font-size:12px; letter-spacing:.06em; text-transform:uppercase; padding:9px 14px;\"\u003eSystem\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#F0F9F8; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eCompatible outdoor units\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eSTU3-C08R290 to STU3-C16R290 (three-phase, 8 to 16kW)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#FFFFFF; border-bottom:1px solid #D9EDEA;\"\u003e\n\u003cdiv style=\"flex:0 0 44%; padding:10px 14px; font-size:14px; font-weight:600; color:#333333;\"\u003eFunctions\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 14px; font-size:14px; color:#222222;\"\u003eHeating, cooling, domestic hot water\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eWhat does the hydraulic unit do?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eIt is the \u003cstrong\u003eindoor unit\u003c\/strong\u003e of the SolaX Thermal R290 system. It holds the indoor control board and \u003cstrong\u003etouch panel\u003c\/strong\u003e, a \u003cstrong\u003e3kW + 6kW backup heater\u003c\/strong\u003e, an \u003cstrong\u003e8 litre expansion tank\u003c\/strong\u003e and a \u003cstrong\u003esolenoid 3-way valve\u003c\/strong\u003e, and it links the outdoor unit to your heating and hot water circuits.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eDo I need a separate hot water cylinder?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eYes. The hydraulic unit is for homes with an \u003cstrong\u003eexisting or self-installed\u003c\/strong\u003e hot water cylinder. The floor-standing \u003cstrong\u003eHydraulic Integrated Unit\u003c\/strong\u003e is the version with a \u003cstrong\u003e190-litre\u003c\/strong\u003e cylinder built in.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eWhich outdoor units does it go with?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eThe \u003cstrong\u003eSTU3 R290 series\u003c\/strong\u003e: STU3-C08R290 to STU3-C16R290 (three-phase, 8 to 16kW). Confirm the exact pairing for your outdoor unit in the SolaX installation manual before ordering.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eWhat is the difference between the STN1-C02 and STN3-C02?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eSupply and rated current only. The \u003cstrong\u003esingle-phase STN1-C02\u003c\/strong\u003e runs on \u003cstrong\u003e220 to 240V\u003c\/strong\u003e at \u003cstrong\u003e39.5A\u003c\/strong\u003e, and the \u003cstrong\u003ethree-phase STN3-C02\u003c\/strong\u003e runs on \u003cstrong\u003e380 to 415V\u003c\/strong\u003e at \u003cstrong\u003e13.5A per phase\u003c\/strong\u003e. Size, weight, heater capacity and connections are the same.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eHow big is the backup heater?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eThe unit contains a \u003cstrong\u003e3kW + 6kW\u003c\/strong\u003e backup heater. SolaX lists it as the backup heater for the system.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eHow is it controlled and monitored?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eLocally on the \u003cstrong\u003e4 inch touch panel\u003c\/strong\u003e, and remotely through the \u003cstrong\u003eSolaX Smart App\u003c\/strong\u003e, which supports monitoring, operation and \u003cstrong\u003eOTA updates\u003c\/strong\u003e. The unit connects by \u003cstrong\u003eWiFi, Ethernet or RS485\u003c\/strong\u003e, and the SolaX Thermal R290 range supports \u003cstrong\u003eModbus TCP\/RTU\u003c\/strong\u003e and is \u003cstrong\u003eSG Ready\u003c\/strong\u003e.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eDoes it include a circulation pump?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eThe contents listed for the hydraulic unit are the control board, touch panel, \u003cstrong\u003ebackup heater\u003c\/strong\u003e, \u003cstrong\u003e8 litre expansion tank\u003c\/strong\u003e and \u003cstrong\u003esolenoid 3-way valve\u003c\/strong\u003e. Check the SolaX installation manual for the circulation pump arrangement in your system.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003cdiv style=\"border:1px solid #D9EDEA; border-radius:8px; margin-bottom:10px; overflow:hidden;\"\u003e\u003cdetails\u003e\u003csummary style=\"padding:14px 18px; font-size:15px; font-weight:700; color:#ffffff; cursor:pointer; list-style:none; display:flex; align-items:center; justify-content:space-between; background:#008377CF;\"\u003e\u003cspan\u003eWhere can I install it?\u003c\/span\u003e\u003csvg width=\"16\" height=\"16\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#ffffff\" stroke-width=\"2.5\"\u003e\u003cpolyline points=\"6 9 12 15 18 9\"\u003e\u003c\/polyline\u003e\u003c\/svg\u003e\u003c\/summary\u003e\u003cdiv style=\"padding:14px 18px 16px 18px; font-size:14px; color:#444444; line-height:1.65; border-top:1px solid #D9EDEA; background:#ffffff;\"\u003eIt is \u003cstrong\u003ewall mounted\u003c\/strong\u003e indoors and measures \u003cstrong\u003e420 x 700 x 265mm\u003c\/strong\u003e. It weighs \u003cstrong\u003e33kg empty\u003c\/strong\u003e, so make sure the wall can carry it once it is filled with water.\u003c\/div\u003e\u003c\/details\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Solax","offers":[{"title":"Default Title","offer_id":66067859898717,"sku":"STN3-C02","price":1270.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/SolaXThermalR2901-PhaseHydraulicUnitSTN1-C02.jpg?v=1790607065","url":"https:\/\/qualityheating.co.uk\/products\/solax-thermal-r290-3-phase-hydraulic-unit-stn3-c02-3-6kw","provider":"AIZO Quality Heating","version":"1.0","type":"link"}