{"product_id":"vaillant-arotherm-plus-s2-cooling-coding-plug-0020269259","title":"Vaillant aroTHERM plus S2 Cooling Coding Plug | 0020269259","description":"\u003c!-- SEO Product Name: Vaillant aroTHERM plus S2 Cooling Coding Plug | 0020269259 --\u003e\n\u003cdiv style=\"font-size:16px; max-width:900px; font-family:Arial, Helvetica, sans-serif; color:#1f2d2b;\"\u003e\n\u003cp style=\"margin:0 0 14px 0; line-height:1.65; color:#1f2d2b;\"\u003eThe \u003cstrong\u003eVaillant coding plug for cooling function (0020269259)\u003c\/strong\u003e is the \u003cstrong\u003ecoding resistor\u003c\/strong\u003e that lets a \u003cstrong\u003eVaillant aroTHERM plus\u003c\/strong\u003e heat pump run in \u003cstrong\u003eactive cooling mode\u003c\/strong\u003e as well as heating. It is the optional accessory Vaillant specifies for \u003cstrong\u003earoTHERM plus outdoor units labelled S2\u003c\/strong\u003e, which leave the factory without cooling enabled.\u003c\/p\u003e\n\u003cp style=\"margin:0 0 14px 0; line-height:1.65; color:#1f2d2b;\"\u003eFitting the plug adds the cooling function \u003cstrong\u003eafter installation\u003c\/strong\u003e, so there is no need to replace the outdoor unit. Cooling is then switched on through the \u003cstrong\u003eCooling technology\u003c\/strong\u003e setting on the \u003cstrong\u003eindoor unit control\u003c\/strong\u003e or the optional system control, giving you a simple, low-cost way to offer \u003cstrong\u003eheating and cooling\u003c\/strong\u003e from one \u003cstrong\u003eR290 monobloc heat pump\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:10px; margin:20px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e0020269259\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003eVaillant part code\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003ePlug-in\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003eCoding resistor\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eS2 units\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003earoTHERM plus\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003e15 to 46°C\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003eCooling outdoor range\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eActive cooling\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003eSetting required\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 130px; background:#008377CF; color:#ffffff; border-radius:8px; padding:14px 10px; text-align:center;\"\u003e\n\u003cdiv style=\"font-size:20px; font-weight:700; line-height:1.2;\"\u003eRetrofit\u003c\/div\u003e\n\u003cdiv style=\"font-size:12px; margin-top:4px; opacity:0.95;\"\u003eAdd cooling later\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #008377CF; background:#e8f4f3; color:#0b3d39; padding:14px 16px; margin:14px 0; border-radius:0 8px 8px 0; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eHow it works\u003c\/div\u003e\n\u003cdiv\u003eUnits labelled \u003cstrong\u003eS2\u003c\/strong\u003e are delivered without cooling mode. The cooling function is activated through the \u003cstrong\u003ecoding resistor\u003c\/strong\u003e plus a \u003cstrong\u003esetting on the indoor unit control\u003c\/strong\u003e and the optional system control. In cooling mode the heat pump extracts heat from the building and releases it outdoors.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #c62828; background:#fdecea; color:#7f1d1d; padding:14px 16px; margin:14px 0; border-radius:0 8px 8px 0; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eSafety: competent persons only\u003c\/div\u003e\n\u003cdiv\u003eAny work that requires the outdoor unit to be opened must only be carried out by a \u003cstrong\u003ecompetent person with knowledge of R290 refrigerant\u003c\/strong\u003e. \u003cstrong\u003eIsolate all power supplies at all poles\u003c\/strong\u003e, secure against switching back on, wait at least \u003cstrong\u003e3 minutes\u003c\/strong\u003e for the capacitors to discharge and check that no voltage is present. R290 is flammable, so keep ignition sources away and use a gas sniffer before working on an open unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #d97706; background:#fff7e6; color:#7a4a05; padding:14px 16px; margin:14px 0; border-radius:0 8px 8px 0; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eCompatibility and system checks\u003c\/div\u003e\n\u003cdiv\u003eOnly suitable for aroTHERM plus outdoor units with \u003cstrong\u003eS2\u003c\/strong\u003e in the model name. Check the \u003cstrong\u003edata plate\u003c\/strong\u003e before ordering, and note the plug is supplied for use with both earlier and later (v2) aroTHERM plus units. Fitting the plug alone does not start cooling: the \u003cstrong\u003eCooling technology\u003c\/strong\u003e setting must also be set to \u003cstrong\u003eActive cooling\u003c\/strong\u003e. Make sure the emitters, pipework insulation and system design are suitable for cooling before enabling it.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:28px 0 12px 0; font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px;\"\u003eKey features\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; gap:12px; margin:16px 0;\"\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eUnlocks cooling mode\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eEnables \u003cstrong\u003eactive cooling\u003c\/strong\u003e on \u003cstrong\u003earoTHERM plus S2\u003c\/strong\u003e outdoor units that were supplied heating only.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eSimple plug-in fitting\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eA \u003cstrong\u003ecoding resistor\u003c\/strong\u003e that fits the dedicated \u003cstrong\u003ecoding resistor slot for cooling mode\u003c\/strong\u003e on the outdoor unit control board.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eVaillant accessory\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eListed by Vaillant as the \u003cstrong\u003ecoding resistor for active cooling\u003c\/strong\u003e, part code \u003cstrong\u003e0020269259\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eRetrofit friendly\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eAdd \u003cstrong\u003ecooling after installation\u003c\/strong\u003e without replacing the heat pump or the existing heating system.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eControlled from the indoor unit\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eCooling is enabled and managed via the \u003cstrong\u003eindoor unit control\u003c\/strong\u003e and the \u003cstrong\u003eoptional system control\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 260px; border:1px solid #008377CF; border-top:5px solid #008377CF; border-radius:8px; padding:14px 16px; background:#ffffff;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF; margin-bottom:6px; font-size:16px;\"\u003eBuilt for R290 monoblocs\u003c\/div\u003e\n\u003cdiv style=\"line-height:1.55; font-size:15px; color:#1f2d2b;\"\u003eDesigned for the \u003cstrong\u003earoTHERM plus\u003c\/strong\u003e range using \u003cstrong\u003eR290 refrigerant\u003c\/strong\u003e with a \u003cstrong\u003eGWP of 3\u003c\/strong\u003e.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:28px 0 12px 0; font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px;\"\u003eFitting overview\u003c\/h3\u003e\n\u003cdiv style=\"display:flex; gap:12px; align-items:flex-start; margin:10px 0;\"\u003e\n\u003cdiv style=\"flex:0 0 36px; height:36px; border-radius:50%; background:#008377CF; color:#ffffff; font-weight:700; text-align:center; line-height:36px;\"\u003e1\u003c\/div\u003e\n\u003cdiv style=\"flex:1; line-height:1.55;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF;\"\u003eIsolate and wait\u003c\/div\u003e\n\u003cdiv\u003eSwitch off all power supplies, secure against reconnection and wait at least \u003cstrong\u003e3 minutes\u003c\/strong\u003e before opening the unit.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; gap:12px; align-items:flex-start; margin:10px 0;\"\u003e\n\u003cdiv style=\"flex:0 0 36px; height:36px; border-radius:50%; background:#008377CF; color:#ffffff; font-weight:700; text-align:center; line-height:36px;\"\u003e2\u003c\/div\u003e\n\u003cdiv style=\"flex:1; line-height:1.55;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF;\"\u003eFit the coding resistor\u003c\/div\u003e\n\u003cdiv\u003eWith the casing removed, plug the resistor into the \u003cstrong\u003ecoding resistor slot for cooling mode\u003c\/strong\u003e on the outdoor unit control board, following the Vaillant installation instructions.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; gap:12px; align-items:flex-start; margin:10px 0;\"\u003e\n\u003cdiv style=\"flex:0 0 36px; height:36px; border-radius:50%; background:#008377CF; color:#ffffff; font-weight:700; text-align:center; line-height:36px;\"\u003e3\u003c\/div\u003e\n\u003cdiv style=\"flex:1; line-height:1.55;\"\u003e\n\u003cdiv style=\"font-weight:700; color:#008377CF;\"\u003eEnable cooling\u003c\/div\u003e\n\u003cdiv\u003eOn the indoor unit control set \u003cstrong\u003eCooling technology\u003c\/strong\u003e to \u003cstrong\u003eActive cooling\u003c\/strong\u003e, then configure cooling on the optional system control if fitted.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #008377CF; background:#e8f4f3; color:#0b3d39; padding:14px 16px; margin:14px 0; border-radius:0 8px 8px 0; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003eInstaller note\u003c\/div\u003e\n\u003cdiv\u003eAllow for the larger minimum clearance to the wall of \u003cstrong\u003e250 mm\u003c\/strong\u003e in heating and cooling mode, compared with 200 mm for heating only.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:28px 0 12px 0; font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px;\"\u003eCooling performance once activated\u003c\/h3\u003e\n\u003cdiv style=\"border:1px solid #008377CF; border-radius:8px; overflow:hidden; margin:16px 0;\"\u003e\n\u003cdiv style=\"display:flex; background:#008377CF; color:#ffffff; font-weight:700;\"\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px;\"\u003eOutdoor unit\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px;\"\u003eCooling output A35\/W18\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px;\"\u003eEER A35\/W18\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px;\"\u003eCooling output A35\/W7\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:10px 12px;\"\u003eEER A35\/W7\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#eef7f6; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003eVWL 35\/6 A 230V S2\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.50 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.30\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e3.40 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e3.40\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#ffffff; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003eVWL 55\/6 A 230V S2\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.50 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.30\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e3.40 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e3.40\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; background:#eef7f6; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003eVWL 75\/6 A 230V S2\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e6.40 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.20\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e4.90 kW\u003c\/div\u003e\n\u003cdiv style=\"flex:1; padding:9px 12px;\"\u003e3.50\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-left:6px solid #008377CF; background:#e8f4f3; color:#0b3d39; padding:14px 16px; margin:14px 0; border-radius:0 8px 8px 0; line-height:1.6;\"\u003e\n\u003cdiv style=\"font-weight:700; margin-bottom:4px;\"\u003ePerformance data\u003c\/div\u003e\n\u003cdiv\u003eFigures are published by Vaillant for the units listed, in accordance with EN 14511, for new products with clean heat exchangers.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:28px 0 12px 0; font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px;\"\u003eTechnical specification\u003c\/h3\u003e\n\u003cdiv style=\"border:1px solid #008377CF; border-radius:8px; overflow:hidden; margin:16px 0;\"\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:10px 16px;\"\u003eGeneral\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eManufacturer\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eVaillant\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003ePart code\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003e0020269259\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eProduct type\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eCoding resistor (coding plug) for active cooling\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eFunction\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eActivates the cooling mode on aroTHERM plus S2 outdoor units\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eCompatible units\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003earoTHERM plus outdoor units labelled S2, including VWL 35\/6 A 230V S2, VWL 55\/6 A 230V S2 and VWL 75\/6 A 230V S2\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:10px 16px;\"\u003eInstallation and activation\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eFitting location\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eCoding resistor slot for cooling mode on the outdoor unit control board\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eActivation setting\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eCooling technology: Active cooling, on the indoor unit control\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eControls\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eIndoor unit control and optional Vaillant system control\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eFault indication if missing or damaged\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eF.042 coding resistor fault\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:10px 16px;\"\u003eCooling operating conditions (S2 units)\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eOutdoor temperature range, cooling\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003e15°C to 46°C\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#ffffff; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eRefrigerant\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003eR290 (propane)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex; flex-wrap:wrap; background:#eef7f6; padding:9px 16px; border-bottom:1px solid #d6e9e7;\"\u003e\n\u003cdiv style=\"flex:1 1 220px; font-weight:700; color:#0b3d39;\"\u003eMinimum clearance to wall, heating and cooling mode\u003c\/div\u003e\n\u003cdiv style=\"flex:2 1 300px; color:#1f2d2b;\"\u003e250 mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"margin:28px 0 12px 0; font-size:20px; color:#008377CF; border-bottom:3px solid #008377CF; padding-bottom:6px;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat does the Vaillant cooling coding plug do?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003eIt is the \u003cstrong\u003ecoding resistor\u003c\/strong\u003e that authorises an \u003cstrong\u003earoTHERM plus S2\u003c\/strong\u003e heat pump to run in \u003cstrong\u003ecooling mode\u003c\/strong\u003e. Without it, S2 units operate in heating mode only.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhich heat pumps is it for?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003eIt is intended for \u003cstrong\u003earoTHERM plus outdoor units labelled S2\u003c\/strong\u003e in the model name, such as the \u003cstrong\u003eVWL 35\/6, 55\/6 and 75\/6 230V S2\u003c\/strong\u003e. Always check the \u003cstrong\u003edata plate\u003c\/strong\u003e on your unit.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eIs fitting the plug enough to get cooling?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003eNo. After fitting the plug, set \u003cstrong\u003eCooling technology\u003c\/strong\u003e to \u003cstrong\u003eActive cooling\u003c\/strong\u003e on the indoor unit control, and configure cooling on the optional system control if one is installed.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWho should fit it?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003eA \u003cstrong\u003ecompetent person\u003c\/strong\u003e with knowledge of \u003cstrong\u003eR290\u003c\/strong\u003e refrigerant, because the outdoor unit must be opened. Isolate the power at all poles and wait \u003cstrong\u003e3 minutes\u003c\/strong\u003e before starting.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat outdoor temperatures can the unit cool at?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003eThe S2 units operate in cooling mode at outdoor temperatures from \u003cstrong\u003e15°C to 46°C\u003c\/strong\u003e. Outside these limits the product switches off.\u003c\/div\u003e\u003c\/details\u003e\u003cdetails style=\"border:1px solid #008377CF; border-radius:8px; margin:8px 0; overflow:hidden;\"\u003e\u003csummary style=\"background:#008377CF; color:#ffffff; font-weight:700; padding:12px 16px; cursor:pointer;\"\u003eWhat does fault F.042 mean?\u003c\/summary\u003e\u003cdiv style=\"padding:12px 16px; line-height:1.6; color:#1f2d2b;\"\u003e\n\u003cstrong\u003eF.042\u003c\/strong\u003e is the \u003cstrong\u003ecoding resistor\u003c\/strong\u003e fault, shown when the resistor is damaged or not set. Check that the coding resistor is fitted correctly.\u003c\/div\u003e\u003c\/details\u003e\n\u003c\/div\u003e","brand":"Vaillant","offers":[{"title":"Default Title","offer_id":67804326527366,"sku":"20269259","price":395.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0958\/2051\/3629\/files\/VaillantaroTHERMplusS2CoolingCodingResistorPlug0020269259.jpg?v=1793174418","url":"https:\/\/qualityheating.co.uk\/products\/vaillant-arotherm-plus-s2-cooling-coding-plug-0020269259","provider":"AIZO Quality Heating","version":"1.0","type":"link"}