Ravenheat CS 80 T, Instructions For Use Installation And Servicing

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Once the process of commissioning the boiler is complete, the Once the process of commissioning the boiler is complete, the
commissioning engineer MUST complete the relevant section in the Benchmark log book. commissioning engineer MUST complete the relevant section in the Benchmark log book.
ATTENTION
IT IS A CONDITION OF THE MANUFACTURERS WARRANTY THAT THE BENCHMARK
COMMISSIONING CHECKLIST IS FULLY COMPLETED AND LEFT WITH THE APPLIANCE
6.10 CHECKING THE FLUE SYSTEM
The flue system should be visually checked for
soundness. Check all connections and fixings
are secure and tight.
6.11 CHECKING THE HEATING THERMOSTAT
Allow the system to warm up and then select
the C.H thermostat to ensure the main burner
modulates from “high” to “low” and “low”
to “off” and vice versa (scale range covers
approx. 35 °C - 80 °C, sec 1.5 key 5 to set
sec 1.5 key 5 to set
heating temperatures). heating temperatures).
6.12 TESTING AND REGULATING THE
DOMESTIC HOT WATER SYSTEM
FLOW AND CHECK THE OPERATIONAL
(WORKING) INLET PRESSURE
Set up the boiler to operate at maximum rate
by opening the hot tap to maximum flow.
With the boiler operating at the maximum
rate check the operational dynamic (working)
gas pressure test complies with the
requirements.
Ensure that this inlet pressure can be
obtained with all other gas appliances in the
property working.
Put the appliance in summer position (item1
fig. 1).
- Open a domestic hot water tap (preferably
the bath tap). Ensure the cold water inlet
stopcock is open and the D.H.W. is set at
maximum, press the arrow up (item 3 fig.
1) the digital display shows the set
temperature, if necessary adjust with
arrow up and arrow down buttons.
- After a few seconds the digital display
shows water temperature in demand
(D.H.W. icon flashing, item 12 fig. 2).
- If the boiler does not light check that the
water flow rate is above the min. required to
operate the differential pressure 2.8 L/min.
(0.61 gals/min).
- The temperature of the water will depend
on the rate at which it flows. If, due to high
water pressure, the flow rate is too high
(and the temperature too low for practical
use) the flow rate may be adjusted.
It is better to set for the lowest acceptable
temperature preferably at the bath tap since
the user can gain higher temperatures at
other restricted flow taps.
- If the cold supply is subject to large
fluctuations or is above the permitted max.
water pressure, a suitable pressure/flow
regulator should be fitted on the cold water
supply to the appliance.
- Slowly close the draw off tap to reduce the
flow rate to the min (approx. 2.8 L/min).
- Select a different temperature for D.H.W. to
ensure it operates at its various setting.
- Close the draw-off tap still further. The
burner should stop when the rate falls below
about 2.8 L/min (0.61 gals/min).
6.13 KEEP HOT
The boiler comes with an optional keep
hot facility.
This can be switched on by a competent
by a competent
person. person.
This will result in the boiler, at any time,
This will result in the boiler, at any time,
periodically firing to keep the water
periodically firing to keep the water
within the boiler up to temperature to
within the boiler up to temperature to
reduce the time delay of hot water
reduce the time delay of hot water
delivered to any hot draw off point.
delivered to any hot draw off point.
- Press P button (item 8 fig. 1) for 3
- Press P button (item 8 fig. 1) for 3
seconds to enter in menu.
seconds to enter in menu.
- Use arrow up and arrow down buttons
- Use arrow up and arrow down buttons
(item 5 and 6 fig. 1), to select BOIL.
(item 5 and 6 fig. 1), to select BOIL.
- Press reset and the up arrow button - Press reset and the up arrow button
together (item 2 and 3 fig. 1) and then together (item 2 and 3 fig. 1) and then
press the enter button.
press the enter button.
- Use arrow up and arrow down buttons
- Use arrow up and arrow down buttons
(item 3 and 4 fig. 1) to select the
(item 3 and 4 fig. 1) to select the
following option:
following option:
- PM3 Keep hot (“0” disabled, “1” enable).
- PM3 Keep hot (“0” disabled, “1” enable).
Adjust if necessary.
Adjust if necessary.
6.14 C.H. HIGH/LOW TEMPERATURE 6.14 C.H. HIGH/LOW TEMPERATURE
The boiler comes set, in Central heating, The boiler comes set, in Central heating,
at the 80°C flow temperature. at the 80°C flow temperature.
It is possible to adjust the max set-point to
It is possible to adjust the max set-point to
max 50°.
max 50°.
- Press P button (item 8 fig. 1) for 3 - Press P button (item 8 fig. 1) for 3
seconds to enter in menu. seconds to enter in menu.
- Use arrow up and arrow down buttons
- Use arrow up and arrow down buttons
(item 3 and 4 fig. 1), to select BOIL.
(item 3 and 4 fig. 1), to select BOIL.
- Press reset and the up arrow button - Press reset and the up arrow button
together (item 2 and 3 fig. 1) and then together (item 2 and 3 fig. 1) and then
press the enter button.
press the enter button.
- Use arrow up and arrow down buttons
- Use arrow up and arrow down buttons
(item 3 and 4 fig. 1) to select the
(item 3 and 4 fig. 1) to select the
following option:
following option:
- PM4 (“1” high temperature, “2” low
- PM4 (“1” high temperature, “2” low
temperature).
temperature).
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