Optima Company 1001 Installation Instructions Manual

18, Optima Company 1001 1001 18 External controls: room stat or remote time clock in the place of loop terminals 4 and 5. Please note 24 V only, use only voltage free contacts. IMPORTANT If 230 V is connected to terminals 4 or 5, damage will be caused to the P.C.B. Fixing screw front Screw Blue Brown Fig. 19 …

21, 1001 21 Burner Pressure C.H. and D.H.W. 8.6 To Range Rate the Boiler C.H. (not required for standard installations). The boiler can be range rated for an output from 11.8 kW up to 27.9 kW. When the boiler is supplied it is factory set at the maximum output 27.9 kW. Procedure a. Release the c…

14, 1001 14 Important Note - Always use two spanners to prevent twisting of soft copper pipework on the boiler. Flush out the water system. Note - The maximum inlet cold water pressure must not exceed 10 bar (145 P.S.I.) and a water governor or a pressure reducing valve will …

11, 1001 11 Fig. 7 NOTE: A bypass must be fitted as far as possible from the boiler if thermostatic radiator valves are fitted throughout. Fig. 6 Key 1. Filling point C.H. 2. Temporary connection 3. Cold water supply Gas Cold water Additional expansion vessel C.H. (if required) Filling poin…

22, 1001 22 Honeywell VR 4605 NA 4003 valve with V7335A4014 Modureg Gas pressure Adjustment 1 - With the burner lit: 2 - Connect suitable pressure gauge to burner test point "B", and then: 3 - Disconnect air pressure compensation tube "H"; 4 - Disconnect the wires from c…

19, 1001 19 8.0 COMMISSIONING AND TESTING 8.1 Filling the Central Heating System Fig. 20 Remove the top front panel by gripping both sides and lifting forward away from main boiler assembly. Loosen the cap of the automatic air vent (fig. 20) and leave it loose. Open the central heating flow…