90 GPM through the primary heat exchanger. The flow rates out of the water heater will vary depending on the position of the bypass valve. The integral pump in the Intelli-Fin acts as both the system pump for the water heater and as the bypass pump to pump water through the bypass when the valve is in any position other than fully closed. The flow rates can be established by measuring the DeltaT. See I & O Manual for specific instructions.
90 GPM through the primary heat exchanger. The flow rates out of the boiler will vary depending on the position of the bypass valve. The integral pump in the Intelli-Fin acts as both the system pump for the boiler and as the bypass pump to pump water through the bypass when the valve is in any position other than fully closed. The Intelli-Fin must be installed in a Primary/Secondary Loop installation for the system to operate properly. Failure to do so will result in operational problems including the possibility of failure to operate at all.
Natural Gas: 4.0”wc minimum for all models
10.5”wc maximum for all models
Propane Gas: 4.0”wc minimum for all models
13.0”wc maximum for all models
2000 MBTU Model:
100% Firing Rate – 93.5%
25% Firing Rate – 97%
These Thermal Efficiency numbers have been determined using the ANSI Z21.13 test for Thermal Efficiency using 70 degrees F inlet water temperature and 180 degrees F outlet water temperature. Thermal efficiency numbers for use as a water heater are typically as much as 1.0% higher than those shown due to the maximum outlet water temperature of 140 degrees F.
50 Degrees F. However, currently, there are minimum set point requirements of 70 Degrees F for IB2000, 90 Degrees F for IB1700 and 105 Degrees F for IB1500. Please reference the revised I & O for more information.
Minimum Setpoint – 50 degrees F
Maximum Setpoint – 220 degrees F*
NOTE: The absolute max. setpoint is 240 degrees F, but this requires a re-configuration of the Excel 10 controller by a trained Lochinvar representative for specifically designed systems.
Minimum Setpoint – 50 degrees F
Maximum Setpoint – 190 degrees F*
*NOTE: The absolute max. setpoint is 200 degrees F, but this requires a re-configuration of the Excel 10 controller by a trained Lochinvar representative for specifically designed systems.
Yes, it is designed to run at a specific BTU load ranging between 25% and 100% to meet the load demands.
One 115 VAC, 15 A, 1 ph, 60 Hz circuit for the circulating pump and one 115 VAC, 15 A, 1 ph, 60 Hz circuit for the boiler/water heater are recommended. If a single circuit is used, we recommend using a 115 VAC, 30 A, 1 ph, 60 Hz circuit.
This information is well defined in the I & O Manual. Please see pages 57-63 of the correct I & O Manual for detailed information.
The result achieved are well below the 30 ppm now required in California and Texas.
Typical ranges are as follows:
Natural Gas: CO2: 8.5% - 9.5%
CO: 40 – 100 ppm Air Free
Propane Gas: CO2: 9% - 10.5%
CO: 40 – 100 ppm Air Free
60 to 70 decibels
Either, it is user definable as 1 of the 6 changeable points on the HIP. The default from the factory is to operate on the “Inlet” water temperature.
Manual Reset High Limit (MRHL), Air Proving Switch, Flow Switch, & Ignition Control, Freeze Protection programmed into Excel 10 which will bring the pump on if the water temperature drops below 45 degrees F., Temperature and Pressure Relief Valve, Drains, and Enable/Disable Switch
When the “CHANGE” button on the right side of the control is pressed, a password screen will appear. The user must enter the appropriate password and press “SAVE” to access the changeable screen. The desired point to change must be highlighted by moving the cursor and then use the “+” or “-“ buttons on the right side to change the value to the desired value. Once the desired value is reached, press the “SAVE” button and the new value will be saved and the HIP will return to the first screen of the 21 points for that boiler/water heater. The password must be entered each time a user wants to change one of these 6 changeable points. However, if they go to the screen again within 5 minutes of the last time, it will not require the password again. Another feature is that if the screen is left in the changeable point screen for more than 5 minutes with no activity, it will automatically return to the first screen of the 21 points for the boiler/water heater. Re-entry into this changeable point screen will then require password access again.
The normal operation of this light is indicated by one blink per second. Active alarms will blink this service LED at a faster than normal rate of two blinks per second to indicate an alarm. The alarms which are displayed in this manner are: Network communications failure, Sensor failure, hard lockout, water flow failure, low air, blocked drain, low/high gas pressure, flame failure, soft lockout, heat mode failure, high temperature alarm, and boiler not operational. However, this should not be used to determine faults, nor to replace control.
Yes, all models are designed to be able to fit through an 80” tall by 32” wide door. The height of the 2000 model comes close to this limit, but it is approx. 78” tall. The other models are shorter and do not create a problem.
The Intelli-Fin boilers/water heaters are fully factory assembled and tested and do not require any assembly prior to installation. Connection to water (3”), gas (2” minimum), vent/air intake and electricity is all that is required for hook-up of this equipment. Additional items may be required to use the communication features of this new series.
No. There are no special requirements for installation of these boilers/water heaters.
There is zero clearance from combustibles on the sides. Access to the unit for service is accomplished through the front, top and back. Removal of the side panels for maintenance is not required. Removal of the trim pieces for service is not required. This series is also certified for installation on combustible flooring. However, it is recommended that 36 inches is allowed at the top for burner removal and 48 inches in the front for heat exchanger removal.
Yes. Seismic calculations have been made for Zone 3 and Zone 4. Please contact Customer Service for specific installation requirements.
All Intelli-Fin models are certified for equivalent vent lengths up to 100’ of both vent and air intake pipe. They are certified for the following venting options:
Direct Vent Horizontal – Vent and air intake exit the building horizontally in the same pressure zone.
Direct Vent Vertical – Vent and air intake exit the building through the roof.
Horizontal Vent using room combustion air
Vertical Vent using room combustion air
Vertical Vent using horizontal air intake pipe
Horizontal Vent out one side wall and horizontal air intake pipe on another side wall so that neither of these 2 terminations are in the same pressure zone.
NOTE: Special vent kits are required for some of these installations and are available through Lochinvar.
Category IV vent materials (condensing, positive pressure) are required for the Intelli-Fin installation.
The minimum vent length will approx. 5’ due to the bypass piping loop on the back of the unit. There is no minimum air intake requirement for this series.
2000 Model: 2.2 Gallons per hour
1700 Model: 1.9 Gallons per hour
1500 Model: 1.7 Gallons per hour
Lochinvar provides an optional Condensate Management Kit (KIT3000) which will neutralize the pH of the condensate to 7.0 before being flushed safely down any drain
This is to allow proper operation of the unit under cold water return temperatures. If the return water temperature is 130 degrees F or higher, we do not have to worry about condensate forming in the primary combustion chamber on the heat exchanger tubes. Return temperatures below this point create the possibility of condensate forming. The floating point control of the automatic bypass valve allows some of the outgoing water to be recycled back into the inlet (thereby tempering the water). The bypass valve will attempt to open/close to maintain the desired setpoint temperature of the bypass (this is done during the initial configuring process of the Excel 10 in production.
We have coined the term “Alcromesh” for the burner material on the outside of the burner. The burner also consisted of a stainless steel perforated sleeve under the Acromesh material. There are also distribution baffles and a cone inside the burner for optimum performance.
Recommend annual cleaning/inspection of the burner. Remove any visible blockage inside the burner with a vacuum, etc. and blow compressed air across the burner surface for cleaning the “pores” of the burner material.
Yes and is designed to burn in either blue flame or infrared conditions.
Yes when the modulation rate is 50% or less. On firing rates above 50%, there is always some slight infrared visible on the tips of the burner material.
The burner warranty is for five (5) years against failure in normal service.
Yes. Once the slotted area of the insulation blanket is pulled back, it will reveal the HSI which can be removed without any other disassembly of the unit.
LonMark is not directly compatible with Bacnet. It can be utilized in a Bacnet system with the use of a Gateway.
There are 21 diagnostic points available through the HIP. In addition, there are 7 diagnostic points available through the ignition control.
There are diagnostic points on both the Fenwal Ignition Control as well as the HIP. The points on the ignition control include: green light on – normal operation; one flash - low air; 3 flashes - flame failure; 4 flashes - igniter failure (low igniter current); 5 flashes - low 24 VAC supply voltage; and 2 internal fault codes (2 flashes and 6 flashes). These are outlined on the label of the ignition control.
With the use of the new Lochinvar “Intelli-Station” software, you can view many data points in either a tabular format or a graphical format. When integrated into a BAS, there are literally hundreds of viewable points, but many do not relate to the operation of the appliance.
If local monitoring involves only through the HIP, no additional equipment is required. If local monitoring involves monitoring through a PC on the site of the boiler/water heater, one would require an SLTA to be connected to the computer to convert the information into a language decipherable by the computer. This SLTA would need to be connected to the Boiler(s)/Water Heater(s) by a twisted pair communications cable connected to the communication terminal block on the back of each Intelli-Fin unit. The PC would need to have software capable of interpreting the information in the network variables. Lochinvar offers a Local Monitoring Kit (SMP3007) which will allow local monitoring through a PC. This kit includes a copy of our new Intelli-Station software.
Lochinvar offers a Remote Monitoring Kit (SMP3006) which will allow remote monitoring through a PC over an analog phone line. This kit includes a copy of our new Intelli-Station software.
Remote monitoring will require a US Robotics V.90 56K modem with x2 technology compatible and an SLTA at the site of the boiler/water heater. The SLTA must be connected to the communication terminal block on the back of each Intelli-Fin unit by a twisted pair communications cable. There must also be an analog` phone line accessible for the modem to connect to. Remotely, one must have a modem to receive the signal (generally most modems supplied with PC’s are acceptable). The PC must also possess the Intelli-Station software or other building management software with the appropriate gateways.
The Intelli-Fin units are LonMark compatible. A skilled system integrator could capture the network variables and integrate them into an existing Building Management System.
The Command Display (HIP as used previously in these FAQ’s) can monitor up to 16 boilers/water heaters and 1 sequencer.
We recommend the use of 22 AWG twisted pair CMR or CMP communication wire (as applicable). NOTE: CMP wire is for use when the communications wire is routed through air ducts, CMR wire is for general use not being routed through air ducts. Each Intelli-Fin unit is shipped with 10 Feet of communication wire and each Sequencing/Monitoring Package is shipped with 25 Feet of communication wire for ease of installation.
One sequencer can handle up to 16 boilers/water heaters. If more than 16 boilers/water heaters are desired to be controlled by a single sequencer, contact the factory.
Standard Sequencing Packages include the First On-First Off and First On-Last Off options. Custom Sequencing Packages include First On-First Off, First On-Last Off, Efficiency Optimized and Efficiency Optimized with Run Time Equalization.
This allows access to a “setup” screen which allows the user to adjust such items as:
Default
Contrast
Backlight Mode
Beep on New Alarm
Beep Rate
Time Format
Date Format
Engineering Units
This is an option that will not be available to the end user. The HIP recognizes 3 levels of passwords, each level gives access a little deeper into the programming of the HIP. The Level I password is the only one usually used and gives access to the 6 changeable point’s screen. The Level III password is intended for use by Lochinvar which will allow access to the HIP even when the Level I password has been established by the end user. The Level II password is not currently used in our application.
When located at the password screen, move the cursor to the first blank space (by using the left or right buttons on the left side of the HIP). Use the “+” or “-“ buttons on the right side of the HIP to either increase (+) or decrease (-) the number to the desired number. Then use the left or right buttons to move the cursor to the next space and repeat this procedure. Once the password has been entered, push the “SAVE” button. If the password is correct, you will see the 6 changeable points, if the password is incorrect, the password screen will stay in place.
This stands for “Serial Lon Talk Adapter”. It is a device that translates the data from the Excel 10 for communications purposes to be received/sent to a remote/local site. This is available from Lochinvar as part of the SMP3006.
This is the Neuron I.D. label which identifies the exact device name of the Excel 10 control in the boiler/water heater. This information is required for the local/remote communication network. This device name is unique to this Excel 10 only and must be present in the network system so that it can be recognized when searched for. NOTE: If the Excel 10 is ever replaced, a tear-off label on the Excel 10 must be placed over this label on the back of the unit for easy reference.
While viewing the upper left side of the back of the boiler cabinet, you should see a two connection terminal strip with jumper in place. Turn boiler off, then remove the jumper and make your connections. This is a satellite connection point for the internal "remote on/off" connections on the mother-board as indicated on the unit wiring diagram.
Possibly, but none that we have provided for in your equipment. This would have to be ordered as a factory-installed option based on your answer to the following question. Do you wish to manually or automatically override the programmed temperature control functions of the building management system?
There should be a gray two-conductor cable exiting the rear of the boiler near the terminal strip. One conductor is black (4-20 mA out) and one is red (4-20 mA in). Strip wires as required and connect them to the 4-20 mA connections from the EMS/Sequencer. Ensure the proper polarity is observed when making connections. The EMS/Sequencer should provide (be the source of) the 4-20 mA. The connection made to the red wire is the current being output from the EMS/Sequencer and the black wire is the current being returned to the EMS/Sequencer. Failure to observe proper polarity will result in the heater only firing at low fire (50%). If this occurs, simply reverse the connections and retest the system.
There will be a six-pin-disconnect plug located on the rear of the boiler under the wiring cover. Extending from that disconnect should be two purple wires (from pins 3 and 6), one blue wire (from pin 1) and one yellow wire (from pin 4). All are capped off. The two purple wires are dry contacts which are close during failure. The blue and yellow wires provide 24 VAC out during a failure. The 24 VAC can be used to energize an external alarm device (optional may/may not be provided). Simply remove the caps and splice in wires as necessary.
Not all options are standard and as such may not appear on every boiler unless they were specified when ordering.