Preview only show first 10 pages with watermark. For full document please download

Dhw Plate Heat Exchanger Fitting Instructions

   EMBED

Share

Transcript

Publication No. ZZ 1465 November 2014 DHW PLATE HEAT EXCHANGER for Quantec Combi HR28C, Combi 24C & 30C Part No. 1000-0301955 FITTING INSTUCTIONS 1. CONTENTS ITEM DESCRIPTION QTY 1 DHW Plate Heat Exchanger 1 2 Sealplate ‘O’ Rings 4 3 Fitting instructions 1 2. PREPARATION NOTE: It is a statory requirement that ALL work is carried out by a ‘competent person’ which in normal circumstances would be a GAS SAFE registered engineer. 2.1 Turn off the gas supply at the gas service cock, and switch OFF and disconnect the electrical supply to the appliance before you start the replacement. 2.2 You must have to hand the Installation, Servicing & Maintenenace Instructions HR28C, Publication No. ZZ1430 and Combi ZZ1432 for this appliance. Or visit our website www.johnsonandstarley.co.uk to download the information. 2.3 Drop down the control panel and remove the front panel. Refer to paragraph 17.5. 2.4 Drain down both the CH and DHW circuits in the boiler. Refer to paragraph 18.11. 3. FITTING INSTRUCTIONS 3.1 COMBUSTION AIR FAN REMOVAL (First Operation) 3.1.1 Disconnect the front mains electrical connection. 3.1.2 Remove the red securing clip, noting its correct position. Slide the fan backwards off the venturi. 3.1.3 Remove the second electrical cable from the rear of the fan. 3.1.4 Remove the fan. CLIP MAINS ELECTRICAL CONNECTION FIGURE 11. COMBUSTION AIR FAN POSITION www.johnsonandstarley.co.uk 3.2 DHW PLATE HEAT EXCHANGER 3.2.1 Unscrew the 2 allen screws securing the plate heat exchanger to the housings, just enough to loosen and remove. 3.2.2 Manoeuvre the DHW plate heat exchanger out through the space left by the fan. 3.2.3 Fit the new plate heat exchanger, using the new O-rings supplied. NOTE: The mounting pins are offset. with the 4 holes to the front and the arrows on the plate heat exchanger pointing to the right. DHW PLATE HEAT EXCHANGER 3.2.4 Hold in position and screw back into place. 3.2.4 Replace the combustion air fan. FIGURE 22. DHW PLATE HEAT EXCHANGER 4. COMMISSIONING 4.1 Once the parts have been replaced and refitted the boiler will need to be refilled and commissioned. For this follow the sections 14 and 15 in the Installation, Servicing & Maintenance Instructions. Johnson and Starley prides itself on its ability to supply spare parts quickly and efficiently. If your service engineer indicates a problem in obtaining a spare part, advise him to contact Johnson and Starley Spares Department at the address below. sustainable solutions under one roof H E AT I N G H O T W AT E R V E N T I L AT I O N Rhosili Road, Brackmills, Northampton NN4 7LZ Tel: 01604 762881 Fax: 01604 767408 www.johnsonandstarley.co.uk