3.8
NORMAL OPERATION OF THE BOILER
Under normal operating circumstances, this boiler functions as a fully automatic appliance. The
automatic control senses the water outlet temperature and res the boiler when heat is needed by
the system. Additionally this boiler may function as part of an integrated building management
system. Outlet water temperature is shown on the display, on the front of the boiler.
3.8.1
BOILER TEST FIRE
There are two ways of testing the boiler; individually or all together (where there is more than one
boiler module included in an installation) – also called a cascade test. To complete the boiler test re,
proceed as follows:
1. Local Test
a) Switch on the boiler, if there is an error message, resolve the error rst- Refer to
Section 4.13 - Error Codes And Troubleshooting. Once any errors are resolved proceed
to the next step.
b) Press and hold the “Test Mode” button for 3 seconds on the boiler to be tested.
c) The display will show “t 0”, this represents approximately 20% of the maximum output.
d) Push the “DHW +” button to instantly bring the boiler up to maximum ring rate. The display
now shows “t 100”, this represents 100% output. Pushing “DHW –” will bring it back to the
minimum ring rate.
e) Pushing the “CH +” and “CH –” buttons will adjust the boiler output in increments of 1%.
f) Press and hold the “Test Mode” button for 3 seconds to exit the Local Test mode.
2. Cascade Test
a) Switch on the boiler, if there is an error message, resolve the error rst – Refer to
Section 4.13 - Error Codes And Troubleshooting. Once any errors are resolved proceed
to the next step.
b) Press and hold the “Test Mode” and “Conrm” buttons for 3 seconds on the master boiler.
c) Adjust the ring rate as explained in the Local Test procedure above.
d) Press and hold the “Test Mode” and “Conrm” buttons for 3 seconds to exit the Cascade
Test mode.