Visit us at : http://www.lgservice.com Safety Precautions Installation Procedure Safety Precautions LG Installation Procedure Step 5 : Connecting sensors and PCB setting To prevent injury to the user or other people and property damage, the following instructions must be followed. ■ Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. Step 5 : Connecting sensors and PCB setting Open control box of the indoor unit and find connector ‘CN_TH4’ on the PCB. Connect sensor into ‘CN_TH4’. Find DIP switch on the PCB. Change DIP switch setting as following : • DIP switch No. 2 : ON (white bar should be located on the right side) • DIP switch No. 3 : OFF (white bar should be located on the left side) LG WARNING This symbol indicates the possibility of death or serious injury. CAUTION This symbol indicates the possibility of injury or damage. Sensor mounting Insert sensor into sensor socket and bolt it tightly. A - Close control box. B OFF ON 1 WARNING 2 Solar Accssories kit 3 ■ Installation Models: PHLLA 4 Be sure to request to the service center or installation specialty store when installing products. 5 Request to the service center or installation specialty store when reinstalling the installed product. 6 C 7 8 Do not disassemble, fix, and modify products randomly. Welding operations need attention in the fire. Insert sensor with RED wire into Tee pipe. Also, insert sensor with BLACK wire into sanitary tank. OFF is selected ON is selected Solar Thermal Sensor(RED) (less than 12 meter) 3way valve (Field Supply) Solar Thermal System Water Out (Field Supply) Water In Water Tank Sensor (less than 12 meter) Pump (Field Supply) Water Out IMPORTANT Water In Water Tank • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. Installation Procedure Find DIP switch on the PCB. Change DIP switch setting as following : • DIP switch No. 2 : ON (white bar should be located on the right side) • DIP switch No. 3 : OFF (white bar should be located on the left side) Installation Procedure Installation Procedure Part Description Step 3 : Pipeworking - Sanitary tank and Solar thermal system Check following conditions before installation. • Pipe diameter of solar thermal system : Tee pipe of solar kit is 22mm diameter. If diameters between pipe of solar thermal system and tee pipe of solar kit are different, pipe diamter reducer or expander, which is field supplying, will be required. • Working space for pipe welding or pipe cutting : Tee pipe of solar kit should be inserted into existing pipe of solar thermal system. To do insert job, cutting of existing solar thermal system pipe and welding of existing solar thermal system pipe and tee pipe of solar kit is required after securing enough working space. • Preparation for working fluid drainage and refilling : While installing solar kit, drainage of working fluid and refilling is required. Be ready to do these jobs. 1. Connect Tee pipe and sensor plug. 2. Inside Tee pipe, metalic particles can be made after connecting Tee plug and sensor plug. Cleaning inside of Tee pipe by flushing clean water. As metalic particles can be also made after disconnecting Tee plug and sensor plug, do cleaning Tee pipe again. 3. While welding Tee pipe, sensor plug can be damaged due to welding heat. To avoid thermal defect on sensor plug while welding, cover sensor plug with wet clothes. 4. Hot water from solar thermal system should be transferred to the upper inlet port of the heatin coil of the sanitary tank. 5. Tee pipe should be located between sanitary tank and hot water pipe. 6. To fix Tee pipe, welding or other bonding method can be applied. It can be determined by installer according to field installation condition. Step 4 : Installing requried parts (field supply) Step 1 : Check what will be installed sanitary tank and solar kit are installed while installation, please read • If sanitary tank is already installed and only solar kit is installed while installation, please read Step 2-2. Step 2-1 : If Sanitary tank and Solar kit are installed Type Power Operating Mode Supported SPDT 3-wire (1) 230V AC Selecting “ Flow A” between “ Flow A” and “ Flow B” (2) Yes Selecting “ Flow B” between “ Flow A” and “ Flow B” (3) Yes (1) : SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting Flow A), Live 2 (for selecting Flow B), and Neutral (for common). • Turn off main power to avoid accident such as electric shock. (2) : “Flow A” means ‘water flow from the indoor unit to under floor water circuit.’ • Install sanitary tank and sanitary tank kit according to related installation manuals. These manuals can be found sanitary tank packaging box and sanitary tank kit packaging box. Sensor inside sanitary tank kit will not be used while installation. Instead,sensor inside solar kit will be used while installtion. (3) : “Flow B” means ‘water flow from the indoor unit to sanitary water tank.’ Step 2-2 : If Solar kit is installed (Sanitary tank is already installed) Sensor mounting Insert sensor into sensor socket and bolt it tightly. A Tube Connector Double Thermistor sensor 12m(1EA) Installation Manual If necessary, additional water pump(field supply) can be installed to transfer hot water when existing solar thermal system’s water pump capacity is not enough. • Specification of the water pump is : 220V AC 50Hz B • Turn off main power to avoid accident such as electric shock. Remove sanitary tank sensor. It will be replaced with different sensor which is a part of solar kit. Sanitary tank sensor is located at the surface of the sanitary tank at midddle height of tank. • Open control box of the indoor unit and disconnect sensor which is connceted at ‘CN_TH4’. Holder sensor 3way valve(field supply) is required. This 3way valve will be used to transfer or stop hot water(generated by Solar thermal system) into heating coil of the sanitary tank. It should be installed like below figure. • Specification of 3way valve : • Check if sanitary tank model name is LGRTV200VE / LGRTV300VE. If not, solar kit can not be installed. • Check if sanitary tank model name is LGRTV200VE / LGRTV300VE. If not, solar kit can not be installed. Part Description Proceed water pipeworking according to following directions : CAUTION • If Step 2-1. Solar Collector (Field Supply) Solar Thermal Sensor(RED) (less than 12 meter) 3way valve (Field Supply) Water In Water Tank Sensor (less than 12 meter) Solar Thermal System Water Out (Field Supply) Pump (Field Supply) Water Out C Water In Water Tank Solar Collector (Field Supply) P/No.: MFL62047302 Printed in Korea After reading this manual, keep it in a place easily accessible to the user for future reference.