NTI INSTALLATION MANUALS

Part 11 - Start-Up

TRX085

TRX120

TRX110C

TRX150C

Parameter

Natural Propane Natural

Propane Natural

Propane Natural Propane

Inlet Gas Pressure Nominal (Inches WC)

7

11

7

11

7

11

7

11

Inlet Gas Pressure Min/Max (Inches WC)

3.5 - 10.5 8 - 13 3.5 - 10.5 8 - 13 3.5 - 10.5 8 - 13 3.5 - 10.5 8 - 13

Ignition Power

220

53

43

40

34

Maximum CH Power Adjustable (%)

231

100

100

100

100

Minimum Power (%)

233

3

2

3

2

Max CH Power (%)

234

56

68

66

68

Max DHW Power (%)

232

56

68

72

87

Gas Ori ce ( Ø)

mm 6.4

5.5

8.5

6.0

6.9

5.5

8.5

6.0

Max DHW

85

120

114

150

Gas Input (MBH)

Max CH

85

120

106

120

Min

9,400

13,200

11,200

13,200

Table 33 - Table Summarizing Powers

ATTENTION: LIQUEFIED PETROLEUM (LP) PROPANE Lique ed Petroleum (LP) propane gas is heavier than air; therefore, it is imperative that your boiler is not installed in a pit or similar location that will permit heavier than air gas to collect. Local Codes may require appliances fueled with LP gas be provided with an alarm or an approved means of removing unburned gases from the room. Check your local codes for this requirement.

C. Checking Combustion Parameters

Menu 2. - Boiler Parameters Submenu 3. - Parameter 1 Maximum Heating Power Adjustment Submenu 2. - Parameter 0 Ignition Power Submenu 3. - Parameter 5 Heating Ignition Delay Maximum Heating Power Adjustment 2.3.1 The maximum heating power can be adjusted to between the maximum and minimum power allowed by the boiler. The display shows the heating power value between 100% (“100” on the display) and 0% (“0”) of this interval. To check the maximum heating power, access menu 2/sub menu 3/ parameter1 (231) - see page 60. Check the value. If necessary, modify it as indicated in Table 33. Checking Ignition Power 2.2.0 To check the Ignition power access menu 2/sub menu 2/parameter 0 (220) - see page 60. This parameter is used to manually (0) or automatically (1) set the heating ignition delay time. This is the time the boiler delays igniting the burner after it has met the central heating mode setpoint and switched o . To change this parameter, access menu 2/sub menu 3/parameter 5 (2.3.5)- see page 60. After selecting manual, access the successive parameter 2.3. 6 to set the delay between 0 and 7 minutes. Automatic selection means that the boiler will establish the delay time based on the set-point temperature. If necessary, modify it as indicated in Table 33. Heating Ignition Delay Adjustment 2.3.5 D. Converting the Appliance from Natural Gas to Propane Operation NTI boilers are factory set to operate on Natural Gas. BEFORE OPERATING ON PROPANE the boiler must be converted to Propane using the included conversion kit speci c to the boiler model. The instructions included with the conversion kit CANNOT be used to convert other NTI appliance models. The instructions apply ONLY to the models referenced within. Contact NTI for the availability of conversion kits and instructions for other models. Failure to apply these instructions properly may result in dangerous Carbon Monoxide levels, re, or explosion, leading to property damage, serious personal injury, or death. WARNING

TRX NATURAL TO PROPANE CONVERSION INSTRUCTIONS

For Qualified Technician Installation Instructions

WARNING

This conversion kit shall be installed by a qualified service agency in accordance with the manufacturer’s instructions and all applicable codes and requirements of the authority having jurisdiction. If the information in these instructions is not followed exactly, a fire, an explosion or production of carbon monoxide may result causing property damage, personal injury or loss of life. The qualified service agency is responsible for the proper installation of this kit. THE INSTALLATION IS NOT PROPER AND COMPLETE UNTIL THE OPERATION OF THE CONVERTED APPLIANCE IS CHECKED AS SPECIFIED IN THE MANUFACTURER’S INSTRUCTIONS SUPPLIED WITH THE KIT, WHICH NECESSITATES THE USE OF A CALIBRATED CO 2 /O 2 AND CO COMBUSTION ANALYZER.

Figure 96 - Conversion Kit Instruction Cover

86