Ethos 36C User Manual

Installation and Operation manual ETHOS 36C and ETHOS 54C –1511/05-issue1
Page 22
5.8.4 Min. input setting
After setting the max. input, press the ’–’ button. The display alternately shows the lower position min. speed which
is 1.5 or 1.7 (= 1,500 rpm Ethos 36C and 1,650 rpm Ethos 54C), depending on the applied type, and an ’L’.
Turn the screw [1] for the min. setting to adjust this min. input.
Note: When adjusting the CO2 percentage, turn the adjusting screw only slightly.
The CO
2
percentage will be reduced if the screw is turned anticlockwise and increased if turned clockwise
Type of gas
Natural gas G20 Propane
Injector None None
Wobbe index Ws (gross) (MJ/m3) 41,52 76,64
Calorific value Hi (net) (MJ/m3) 30,5 88,00
CO
2
min. heat input (%) 8,3(+/-0,3)* 10,1(+/-0,3)*
* measured without jacket
Cancel the gas valve adjusting mode by simultaneously pressing the ’+’ and ’–’ buttons and the appliance will
operate automatically.
5.9 Conversion for different gas type
Please contact ETHOS Boilers before converting the appliance for LPG use.
After conversion to propane, the CO
2
settings must be checked:
a. Turn screw [2] 4 full turns clockwise.
b. Switch on the appliance. If appliance doesn’t fire after 4 ignition attempts , turn screw [2] one full turn
back (anticlockwise).
c. If burner is ignited: press (approx 1 minute after ignition) the ‘-‘ and ‘+’buttons simultaneously (3 sec).
Boiler will now operate for 20 minutes in gas valve setting mode.
d. Check / set max. and min. heat input and CO
2
setting according to par. 5.8.1 to 5.8.4.
5.10 DHW temperature
This temperature is set by the manufacturer at a fixed value of 60°C to prevent Legionella contamination at low
temperatures.
It is advisable not to set this temperature at a lower value.
5.11 Shutting down
It is advisable to keep the appliance switched on during winter and summer. This prevents the appliance from
freezing and moving parts from seizing.
Switch off the appliance by decreasing the value of the room thermostat: this ensures a minimum power
consumption (+/- 5 watt), since the central heating pump and fan will stop after a short time delay.
If it is necessary to shut down the appliance, perform the following actions:
a. Close the gas tap.
b. isolate the boiler from the electrical supply.
c. In case of frost risk, drain the appliance and installation.
d. In case of frost risk, also drain the water pipes.
First drain the installation and then open the draining point on the boiler to drain the appliance. For the DHW first
isolate the MCW inlet supply and open the hot water taps.

Ethos 36C Specifications

General

Brand	Ethos
Model	36C
Category	Boiler
Language	English