Lochinvar 1.3, 1.5 operation manual 11 Outdoor Air Reset Curve, 12 Parameter Set 4G, 6Parameters

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Figure 6-11Outdoor Air Reset Curve

PC Program Instructions

6Parameters

Figure 6-11Outdoor Air Reset Curve

To adjust the BMS settings, click on the tab labeled 4G BMS (see FIG. 6-12 below).

Figure 6-12Parameter Set 4G

BMS Setpoint at min voltage (BMS setpt min V)

If parameter 4CB is set to 2, the control must know what minimum setpoint temperature to use. This can be changed by accessing parameter 4GA. The temperature range for this parameter is 32°F (0°C) to 248°F (120°C). The default value is 70°F (21°C).

BMS Setpoint at max voltage (BMS setpt max V)

If parameter 4CB is set to 2, the control must know what maximum setpoint temperature to use. This can be changed by accessing parameter 4GB. The temperature range for this parameter is 32°F (0°C) to 248°F (120°C). The default value is 180°F (82°C).

BMS Voltage at low setpoint (BMS V Min Setpt)

If parameter 4CB is set to 2, the control must know what voltage corresponds to the minimum setpoint. This can be adjusted by accessing parameter 4GC. The voltage range for this parameter is 0Vdc to 4GD The default value is 2Vdc.

BMS Voltage at high setpoint (BMS V Max Setpt)

If parameter 4CB is set to 2, the control must know what voltage corresponds to the maximum setpoint. This can be adjusted by accessing parameter 4GD. The voltage range for this parameter is 0Vdc to 4GC. The default value is 10Vdc.

Min BMS voltage to start demand (BMS V Heat)

If parameter 4GK is set to 1, then the heat demand will be generated by the voltage present on the 0-10Vdc input. Parameter 4GE determines the voltage at which the SMART SYSTEM control initiates a heat demand. The range for this parameter is 4GF to 10Vdc. The default value is Vdc.

Differential to stop BMS demand (Drop in BMS End)

If parameter 4GK is set to 1, then the heat demand will be generated by the voltage present on the 0-10Vdc input. Parameter 4GF determines how far below the starting voltage (parameter 4GE) the voltage must drop before the heat demand ends. The range for this parameter is 0Vdc to 4GE. The default value is 1Vdc.

BMS Power at min voltage (BMS mod @minV)

If parameter 4CB is set to 0, the control must know what minimum power level is to be used. This can be changed by accessing parameter 4GG. The range for this parameter is 20% to 4GH. The default value is 20%.

BMS Power at max voltage (BMS mod @maxV)

If parameter 4CB is set to 0, the control must know what maximum power level is to be used. This can be changed by accessing parameter 4GH. The range for this parameter is 4GG to 100%. The default value is 100%.

Figure 6-12Parameter Set 4G 18 BMS Setpoint at min voltage (BMS setpt min V)

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Contents Save this manual for future reference ModelsSYNC - PCP Rev A PC PROGRAM INSTRUCTIONS FOR THE SYNCContents USB installation 1InstallationProgram installation Program setupFigure 1-1 SMART TOUCH PC Main Screen Figure 1-3 Password WindowStarting the program Figure 1-2 Sitecs937Lab Main Screen2Status Screen Figure 2-1 SMART TOUCH Status ScreenPC Program Instructions Figure 2-1 continued 2Status ScreenPC Program Instructions 3Graphics Screen Figure 3-1 SMART TOUCH Graphics ScreenPC Program Instructions 4Fault History Screen Figure 4-1 Fault History ScreenPC Program Instructions 5Cascade Screen Figure 5-1 Cascade ScreenPC Program Instructions Parameter information screens Set 1 System Setup Set 2 Functional Data6Parameters Set 4 Menu Values6Parameters continued Set 1 System setupRamp delay settings Changeable parametersBlock time Switch On/Off 2nd burner HW Block time switching boiler onBlock time switching boiler on/off Set 2 Functional DataFigure 6-6 Parameter Set 4A Set 4 Menu valuesFigure 6-5 Parameter Set 2E Space Heating SH user setpoint User SetpSH off-ondifferential SH off/on df Shift OA reset curve Shift Air ResetMax service time Max Serv t Offset HW setpoint to end HW demandConfig SH control Time to switch between HW and SH SH/HW sw timCascade max SH step power based Max outl temp Tank differential tempReload short time ModBus out of order CascadeMaster controlled through ModBus Demand conf Figure 6-8 Parameter Set 4DBurner cycles for service reminder Serv Not cycl No. of months for service reminder Serv Not timeRunning hours for service reminder Serv NotRun h Figure 6-10 Parameter Set 4FBMS Power at max voltage BMS mod @maxV Figure 6-11 Outdoor Air Reset CurveBMS Power at min voltage BMS mod @minV Figure 6-12 Parameter Set 4GBMS Demand Enable 1 Voltage BMS Voltage at min power BMS V @min modBMS Voltage at max power BMS V @max mod Storing parameters on your PCRevision Notes Revision A initial release
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1.5, 1.3, 1 specifications

Lochinvar 1 is a remarkable achievement in the realm of modern technology and engineering. As a powerful and efficient water heater, it has been designed to cater to a wide range of residential and commercial needs. One of the standout features of Lochinvar 1 is its advanced heating technology, which incorporates a high-efficiency condensing design. This technology allows the unit to achieve impressive energy savings by maximizing heat transfer while minimizing energy consumption.

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