LAARS Heating Systems
Page 76
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When you are through, you shut off the
controller/burner you have been working with,
turn on the other controller/burner, and make
the same adjustments there.
WarnInG
Improper adjustment may lead to poor combustion
quality, increasing the amount of carbon monoxide
produced. Excess carbon monoxide levels may
lead to personal injury or death.
Required tools: Screwdrivers, Torx bits, combustion
analyzer
In the rest of this section we will explain the setup
procedure in more detail.
1. On the gas valve for the Primary burner on the
boiler, locate the adjustments for the high fire
CO
2
and low fire CO
2
. See Fig. 101.
Table 17 lists the CO
2
readings you should see
at high fire and low fire.
2. To start the setup, turn on the call for heat.
3. Before you can set up the Primary burner, you
must shut off the Secondary burner. Go to the
Home screen on the display. Press the icon for
the control labeled Secondary.
fig. 101 – High and low fire adjustments on
Gas Valve
High fire adjustment
Low fire adjustment
Gas Type
High Fire CO
2
Low Fire CO
2
Pressure Differential
Natural
8.5% ± 0.2
0.5% lower than high fire CO
2
0.5” to 1.2” wc*
Propane
9.5% ± 0.2
0.5% lower than high fire CO
2
0.5” to 1.2” wc*
* - Only check the pressures if there are problems getting the CO
2
and CO values in range.
table 17 – Co
2
range and Pressure Differential
Primary
burner
Primary
controller
Gas
valve
Gas
valve
Secondary
controller
Secondary
burner
Operator
interface
Boiler 1
fig. 100 – Primary and Secondary Burners in a Boiler
Summary of Contents for NTV1000
Page 2: ......
Page 35: ...NeoTherm Boilers and Water Heaters Page 31 Fig 20 Ladder Diagram...
Page 36: ...LAARS Heating Systems Page 32 Fig 21 Wiring Diagram...
Page 37: ...NeoTherm Boilers and Water Heaters Page 33...
Page 51: ...NeoTherm Boilers and Water Heaters Page 47 Fig 52 Connection Terminals...
Page 130: ...LAARS Heating Systems Page 126 Fig 140 Machine Frame and Rear Panel 13 3 PARTS ILLUSTRATIONS...
Page 131: ...NeoTherm Boilers and Water Heaters Page 127 Fig 141 Front Panel and Covers...
Page 132: ...LAARS Heating Systems Page 128 Fig 142 Burners and Combustion Chambers...
Page 134: ...LAARS Heating Systems Page 130 Fig 145 Electronic Components...
Page 135: ...NeoTherm Boilers and Water Heaters Page 131 Fig 146 Condensate Trap Fig 147 Control Bezel...
Page 136: ...LAARS Heating Systems Page 132 Fig 148 Flow Switch...
Page 137: ...NeoTherm Boilers and Water Heaters Page 133 This page intentionally left blank...
