Displaying The Water Pressure On The Control Panel; Modifying The Δt Value - REMEHA GAS 120 ACE Series User Manual

7 Commissioning
Tab.17
Values at part load for G31 (propane)
(1) nominal value
(2) Values given as a guide
Tab.18
Values at part load for G30/G31 (butane/propane)
(1) nominal value
(2) Values given as a guide
Fig.51
B
B
7.8

Displaying the water pressure on the control panel

7.9 Modifying the ΔT value
38 MID _HMI T-control - Gas 120 ACE
Gas 120 ACE - 65
Gas 120 ACE - 90
Gas 120 ACE - 115
Gas 120 ACE - 65
Gas 120 ACE - 90
Gas 120 ACE - 115
B
MW-2000725-1
Off
In systems with several operating temperatures, the boiler's ΔT value must
be increased.
The O values at low load must be higher than the values at full
2
load.
4. If the measured value is outside of the values given in the table,
correct the gas/air ratio.
5. Using the adjusting screw B, set the percentage of O
being used to the nominal value. This should always be within the
highest and lowest setting limits.
Allow the pressure to stabilise for approximately 60 seconds between
each setting modification.
Important
The boilers are supplied with a variety of gas valve units.
Compare the gas valve unit in the boiler with those in the drawings
and see the drawing for the position of adjusting screw A for full
load.
6. Repeat the high speed test and the low speed test as often as
necessary until the correct values are obtained without having to
make additional adjustments.
7. Set the boiler back to the normal operating status.
1. Highlight the Water Pressure
The pressure is displayed on the main screen of the control panel.
O % CO
(1)
2
5.4 - 5.7 10.0 - 10.2
(1)
5.5 - 5.8 9.9 - 10.1
(1)
5.8 - 6.3 9.6 - 9.9
(1)
O % CO
(1)
2
5.7 - 6.2 9.7 - 10.0
(1)
5.7 - 6.2 9.7 - 10.0
(1)
5.7 - 6.2 9.7 - 10.0
(1)
2
icon.
7717201 - v03 - 25062019
%
(1)(2)
2
(1)
(1)
(1)
%
(1)(2)
2
(1)
(1)
(1)
for the gas type