Lochinvar smart system pc software download

The SH offset sets how many degrees above set point the temperature has to go before the boiler will shut off. This parameter can only be changed by the installer by accessing parameters SH1, 2 and 3 Offset Set point parameters.

The SH differential sets how many degrees below the offset the temperature has to drop before the boiler turns back on. This parameter can only be changed by the installer by accessing the SH1, 2 and 3 Differential Set point parameters. The optional Lochinvar Multi-Temperature Loop Control Board MTLC can be used to control the supply temperature in up to three 3 sub-loops, corresponding to each of the three 3 SH set points, through the use of 3-way mixing valves.

To ensure the MTLC will control these temperature properly, it is necessary to let the control know how much time these mixing valves require to fully open and close. Program this time into the 3-Way Valve Time parameter.

The minimum setting is 1 second, and the maximum setting is seconds. The default setting is 20 seconds. By pressing the pin button on the front of the display for five 5 seconds, the control will be placed in Service Mode. This will override all other heat demands. The Service Mode allows the installer to set the unit to any firing rate for the purpose of combustion analysis.

The delay sets the length of time the boiler will stay in the Service Mode if no keys have been pressed before going back to its original state. This parameter can only be changed by the installer by accessing the Service Mode Delay parameter. The time range of this parameter is 1 to 10 minutes. The default value is 10 minutes. This is done to prevent the water in the heat exchanger from freezing. Certain low-temperature applications such as snow melt can operate at temperatures around freezing, so this setting needs to be lowered in these cases.

The installer can adjust the temperature at which the pump outputs are turned on by accessing the Freeze Protection Pump On parameter. The installer can adjust the temperature at which the burner fires by adjusting the Freeze Protection Burner On parameter. Once the burner has started firing due to a low inlet temperature, the inlet temperature must increase by this amount before the burner turns back off. The installer can adjust this differential by accessing the Freeze Protection Burner Differential parameter.

The temperature range of this parameter is from the tank minimum set point to the tank maximum set point. When a tank sensor is installed, the tank temperature must drop this amount below the tank set point DHW Tank Set point parameter before the boiler turns back on.

The installer can adjust this setting by accessing the Tank Set point Differential parameter. When a DHW call for heat becomes active, the control will use the DHW boiler set point to determine the firing rate of the boiler based on the boiler outlet water temperature, or system temperature when DHW is programmed as a zone.

This parameter reflects the degrees above DHW boiler set point the temperature has to go before the boiler will shut off. This parameter reflects the degrees below DHW boiler offset set point the temperature has to go before the boiler turns back on. This setting controls the minimum tank set point for the tank temperature.

The installer can adjust this by accessing the Tank Minimum Set point parameter. This setting controls the maximum tank set point for the tank temperature. The installer can adjust this by accessing the Tank Maximum Set point parameter. This parameter determines the maximum fan speed and therefore the maximum rate to be used when heating an indirect DHW tank.

The default value is the maximum fan speed for that model. This parameter determines whether the Fire Tube boiler treats the indirect DHW tank as a separate load, or as a zone on the primary loop. When programmed as a separate load, the boiler will turn on the DHW pump and then turn off the boiler pump when an indirect DHW demand begins.

This setting may be changed by the installer by accessing the DHW Type parameter. When a boiler has a space heating demand and it receives a DHW demand, it will immediately switch to the DHW demand and start a timer. Once the timer has expired, the boiler will switch back to the space heating demand and start another timer.

Once this other timer expires, it will switch back to the DHW demand. The minimum setting is 0 minutes and the maximum setting is 55 minutes. The default time is 30 minutes. Once the timer expires, it will stop the DHW demand and service the space heating demand. The default setting is 30 minutes. The default setting of this parameter is YES. The default setting is NO. If the outdoor air temperature drops further, the set point will continue to increase above this setting. This parameter can be changed by the installer by accessing the Outdoor Low parameter.

This parameter can be changed by the installer by accessing the Outdoor High parameter. When the outdoor air temperature drops to the Outdoor 1 - 3 Low parameters, the calculated set point will be at this setting FIG.

When the outdoor air temperature rises to or above Outdoor 1 - 3 High parameters, the calculated set point will be at this setting FIG. When the outdoor temperature rises above this point, the control will block the corresponding SH demand DHW demands will still be active. The outdoor air shutdown differential parameter is the number of degrees below Outdoor Air Shutdown SH1, SH2, and SH3 parameters the outdoor air temperature must go before the boiler will respond to the corresponding SH demand.

There is a shift reset parameter for each outdoor reset curve. The shift reset parameter shifts the actual set point above or below the calculated set point by the number of degrees in this parameter. If a SH demand lasts longer than the programmed time delay setting and there have been no DHW demands, the control will increase the water temperature set point by the amount in this parameter. If the SH demand continues through another time period, the set point will be increased again.

Once the SH demand has been satisfied the set point will revert back to its calculated setting. The boost temperature can be changed by the installer by accessing the Boost Temperature parameter. The boost time parameter sets the amount of time that must elapse with a SH demand before the water temperature calculated set point will be increased.

This parameter can be changed by the installer by accessing the Boost Time parameter. The time range for this parameter is 0 minutes to 55 minutes. The default value is 0 minutes. Once the burner turns off, a set amount of time must elapse before the control will respond to a new demand.

The control will block the new heat demand and anti-cycling will be shown in the display until the time has elapsed or the water temperature drops below the Anti-Cycling Override Differential parameter.

This parameter can be changed by the installer by accessing the Anti-Cycling Time parameter. The time range for this parameter is 1 minute to 10 minutes. The default value is 1 minute. The control will bypass the anti-cycling time if the inlet water temperature drops too much. The control will use the inlet water temperature present at the boiler when it shuts off as the starting point. If the inlet temperature drops below the temperature parameter the control will abort anti-cycling and allow the boiler to fire.

This parameter can be changed by the installer by accessing the Anti-Cycling Override Differential parameter. This parameter allows the installer to enable or disable the SH ramp delay.

The default setting is disabled. There are six 6 possible limits, each with their own time delay. The first limit applies as soon as the burner starts. Once its time delay expires, the second limit is applied and its timer begins. The control steps through these limits until the 6th sixth limit expires. Note, however, that the 6th limit will also limit the rate for the rest of that heat demand.

The installer can adjust the firing limits and time delays by accessing the Ramp Settings parameter. Once this parameter is selected, the screen will show the step number, the time delay for that step and the limit value corresponding with that step.

The installer can then select the next step and adjust the delay and limit values corresponding with that step. This parameter allows the installer to reduce the responsiveness of the temperature control function, for situations where, for example, redundant heating capacity is installed. The values that are available are 40, 50, 60, 70, 80, 90, and , with being the most responsive.

The default value is The SH controlling sensor parameter selects the sensor the control will use to regulate the boiler firing rate. This parameter is adjustable by the installer by accessing the Controlling Sensor parameter.

The sensor selections are as follows: The outlet sensor regulates the firing rate based on the outlet water temperature of the boiler and the inlet sensor regulates the firing rate based on the inlet water temperature of the boiler. If the outlet sensor is selected, and the optional system supply sensor is connected, the control will regulate the firing rate based on the system supply sensor temperature.

The default sensor is the Outlet Sensor. The boiler designated as the Leader needs to be programmed with address 0. All the Member boilers require addresses from 1 to 7, and the addresses must be different for each Member. The addresses can be in any order, regardless of the order in which the units are wired together. This parameter is adjustable by the installer by accessing the Cascade Address parameter.

The outdoor air if used and system supply sensor must be connected to the Leader boiler. The default address is 1. This parameter determines the set point used by the individual boilers in a Cascade when a system sensor is connected to the Leader boiler.

When a boiler is commanded to fire by the Leader boiler, it will attempt to achieve this temperature at its outlet.

The Leader boiler will limit the modulation of the boiler s in order to hold the temperature at the system supply sensor to the user set point. If any of the boiler outlet temperatures reach the maximum cascade set point, that boiler will then modulate down on its own in order to keep its outlet temperature within the maximum cascade set point.

Therefore, this parameter can be used to limit the outlet temperatures of all the boilers in a Cascade. Note that this parameter does not apply when the boiler is heating an indirect DHW tank programmed as normal.

This parameter is adjustable by the installer by accessing the Maximum Cascade Set Point parameter. This parameter determines how much the temperature must go above set point before the lead boiler will turn off.

This parameter can be adjusted by the installer by accessing the Cascade Offset parameter. This parameter can be adjusted by the installer by accessing the Cascade Differential parameter. There are two 2 options for the way a Cascade divides the load between its heaters. This method is used when it is desired to have the least amount of total flow through the boilers. This method will modulate the last two 2 boilers that are firing. This provides for smooth transitions when a boiler turns on or off.

This method is used, as the name implies, when it is desired to have the most efficient system. The two 2 boilers then modulate at the same rate. The three 3 boilers then modulate together. Efficiency optimization is automatically selected when boilers of different sizes are programmed into the Leader control. In order to prevent units in a Cascade from short cycling, this parameter defines the minimum ON and OFF time for each unit.

The minimum setting is 0 seconds and the maximum setting is 10 minutes. The default is 30 seconds. For example, the new V enable Input allows a thermostat or a V signal to initiate a call for heat, giving the BMS options for enabling a single unit or a cascaded system, while the new V Output allows BMS to monitor the firing rate of each unit.

In addition, a V signal controls the optional variable speed boiler pump, which allows the system to maintain a higher temperature rise at low firing rates and reduce boiler flow when low flow in the system loop is detected. The V System Pump Signal Input offers faster reaction to changes of flow in the system, reducing the possibility of temperature over-shoot and excessive cycling. Lochinvar Corporation is a leading manufacturer of high-efficiency water heaters, boilers, pool heaters and storage tanks.

For more information about Lochinvar, contact: Lochinvar Corp. Crest with Hellcat wins FacilitiesNet. As a proactive measure and a show of brand loyalty, they removed the old units and installed two new Lochinvar Copper-Fin2 Commercial Pool Heaters at the 14,square-foot center equipped with a ,gallon pool that hosts up to 30, visitors per week season.

Providing up to 30 GPM of continuous hot water delivery, the Reverse Indirect Water Heater is designed perfectly for multi-family, commercial and large residential water heating applications using a hydronic system. We are a leading producer of energy-efficient water heating solutions that are radically simple, brilliantly engineered and perfectly suited for most any application. We focus solely on serving the unique needs of each customer with a product portfolio including boilers, water heaters, pool heaters, cogeneration products and commercial package systems.

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