Subscribe to Our Youtube Channel
Related Manuals for Lochinvar SYNC
Summary of Contents for Lochinvar SYNC
- Page 1 H I G H E F F I C I E N C Y C O M M E R C I A L B O I L E R S D E S I G N E R ’ S G U I D E S Y N C C O M M E R C I A L B O I L E R Up to Thermal Efficiency w w w .
-
Page 2: Table Of Contents
Designer’s Guide / SYNC Boiler Table of Contents Combustion & Ventilation Air …………………… Page 2 Venting ….…………………………………………….. Page 5 Gas ….….…………….……………….………………… Page 13 Water …..……………………..……………………….. Page 15 Electricity & Controls ……………………………….. Page 21 Other Details ..……………………………………….. Page 26 Appendix A ….……..…………………………………. Page 29... - Page 3 Designer’s Guide / SYNC Boiler At Lochinvar, we know that designing a boiler is hard work. Designing a boiler system is no picnic either. Demands for greater efficiency and elaborate system control have made systems more complex. This designers guide will break down the system requirements that match the SYNC boiler to assure safe operation, highly efficient heating and long life.
-
Page 4: Combustion & Ventilation Air
Therefore, a good, easy flow of clean air is 100% necessary for clean, efficient combustion. So, we need to provide a permanent and uninterrupted flow of air to the boiler. The SYNC boiler is designed to receive combustion air by one of TWO methods. The boiler may draw combustion air from the room or have the air ducted directly to the boiler from an exterior space. - Page 5 This opening must be located within 12" (30 cm) of the top of the enclosure. Did you Know? THE SYNC COMES WITH LOUVER CONTACTS AS STANDARD EQUIPMENT. THE CONTACTS WILL OPEN AND CLOSE A MOTORIZED LOUVER ON EACH CALL FOR HEAT.
- Page 6 Designer’s Guide / SYNC Boiler 4. DIRECT OUTSIDE AIR, SINGLE OPENING If a single combustion air opening is provided to bring combustion air in directly from the outdoors, the opening must be sized based on a minimum free area of one square inch per 3000 Btu/hr (7 cm²...
-
Page 7: Venting
The four basic Vent Categories are determined by two characterisitics, Condensation and Pressure. In all vent configurations, the SYNC boiler will operate in Category IV. The modulation of the burner down to 10% of the boiler’s input will put low temperature flue products in the stack that will condense. - Page 8 6" 12 ft 100 ft Did you Know? A 90° VENT ELBOW IS EQUAL TO 5 LINIER FEET OF VENT PIPE AND ALL VENT ELBOWS MUST BE ACCOUNTED FOR IN THE TOTAL VENT LENGTH. SEE SYNC I & O MANUAL FOR DETAILS.
- Page 9 Designer’s Guide / SYNC Boiler SIDEWALL VENT WITH COMBUSTION AIR FROM EQUIPMENT ROOM. The flue outlet terminates out the sidewall. The combustion air is drawn from the equipment room. BULLET POINTS Category IV vent material is required, such as AL29-4C or PVC/CPVC.
- Page 10 Designer’s Guide / SYNC Boiler VERTICAL VENT WITH COMBUSTION AIR FROM THE ROOFTOP. The flue outlet terminates on the rooftop. The combustion air is ducted to the appliance from outdoors through the rooftop. This is true Direct Vent with the flue termination and the air inlet port in the same pressure zone.
- Page 11 The vent termination plate for PVC/CPVC venting is supplied with the boiler. The vent termination plate for Stainless Steel venting is an optional kit available through Lochinvar. The kit part numbers are KIT30028 for 6” termination and KIT30029 for 7” termination. ...
- Page 12 Designer’s Guide / SYNC Boiler VERTICAL VENT WITH COMBUSTION AIR FROM THE SIDEWALL. The flue outlet terminates on the rooftop. The combustion air is ducted to the appliance from outdoors through the sidewall. This is NOT true Direct Vent where the flue termination and the air inlet port are in the same pressure zone.
- Page 13 6 through 10. Approved vent terminations are shown below. The most popular method for a new installation is sidewall venting. The Vent Termination Plate and Vent Termination Cap seen in the illustration are supplied with every SYNC boiler as standard equipment.
- Page 14 Due to the potential for high exhaust temperatures in the event of high water temperatures in the system, the SYNC requires the installation of CPVC pipe for the first 10 feet of exhaust pipe. This may be accomplished with 10 straight feet of CPVC pipe or with one 90° CPVC elbow and 5 straight feet of CPVC pipe.
-
Page 15: Gas
The key to the gas supply is sizing the gas line properly from the meter to the boiler. The SYNC will require less than a half a pound of pressure. The following Sizing Chart is based on less than ½... - Page 16 Designer’s Guide / SYNC Boiler The SYNC features an 1-1/2” gas connection. The gas pipe size from the meter to the boiler may be larger than the appliance connection and must be properly calculated using the chart below. In some cases, a gas pressure regulator will be required to reduce the supply pressure to the boiler.
-
Page 17: Water
NPT outlet connection. Installed piping to and from the boiler must be a minimum of 2-1/2 inch diameter. 2. Maximum Flow Rate The SYNC models have a max flow rate of 90 GPM per heat exchanger. 3. Working Pressure The boiler should not be operated at less than 12 PSIG. - Page 18 Reference Drawing A1 – Page 30 BOILER CIRCULATOR REQUIREMENTS There will be a minimum of three pumps in a SYNC System / Boiler Loop, one pump for the System Loop and two pumps for each heat exchanger in the Boiler Loop. All pumps are provided by the installer.
- Page 19 Designer’s Guide / SYNC Boiler Wye Strainers (typical) Pump 1 Check Valves (Typical) Pump 2 To Drain The boiler pumps must be sized to provide adequate flow through the boiler and the Boiler Loop piping. A pressure drop chart is provided to assist in proper pump selection the chart lists the values for EACH heat exchanger.
- Page 20 Designer’s Guide / SYNC Boiler Reminder: the flow rates and other values listed on the preceding page are for each heat exchanger. When combined in common water piping, the flow rates will double. Increase pipe size accordingly. Use 2-1/2” minimum common manifold pipe size.
-
Page 21: Water Temperature
When using a low mass boiler such as the SYNC, a 3-way valve used for system loop temperature reset must be avoided or the boiler should be decoupled from the system loop with the use of a Buffer Tank or a Low Loss Header. - Page 22 2,000,000 Btu/hr. Each boiler is the standard model that fires at 10:1 Turndown. On a very cold winter day, all five air handlers will call for heat and both SYNC boilers will fire at 100% input rate to meet the demand. On a comparatively cool autumn day, only one 400,000 Btu/hr air handler might be calling for heat.
-
Page 23: Electricity & Controls
Building Automation System (BAS) to “converse” with the SYNC boiler. The BAS can monitor and control the operation of the boiler remotely, communicating via the Modbus language. Note: Modbus is an option that must be specified and ordered with each SYNC boiler. - Page 24 Via Modbus, the BAS can monitor 49 datapoints and adjust another 9 control settings. Modbus is easily wired to the SYNC through twisted pair cable with a shielded ground. Via Modbus, the BAS can control the boiler with a simple Enable/Disable signal or control through full Modulation or Setpoint Temperature and will operate with the SYNC’s built-in Cascade function.
- Page 25 The Smart Touch control will “make” these dry contacts for the duration of the Main Burner. LOW VOLTAGE CONNECTION BOARD Every SYNC is equipped with a Low Voltage Connection Board for a variety of other field connections and control features. Remote Enable / Disable Wired through the Low Voltage Terminal Strip, the Smart Touch control can be activated by a remote thermostat or controlled with an enable / disable signal.
- Page 26 Designer’s Guide / SYNC Boiler Flow Switch Flow Switches are not required due to the boilers built-in LWCO and Low Water Temperature Protection programming. However, contacts are provided for field installation of Flow Switches if required by state or local jurisdiction.
- Page 27 Lochinvar offers PC Software. The PC software program can be downloaded onto a laptop computer and with the connection cable provided in the PC Software kit; you can connect to the PC port on the ECS board on every SYNC control panel. SCREEN SHOT OF PC SOFTWARE...
-
Page 28: Other Details
The SYNC boiler is factory trimmed to meet CSD-1 code per standard interpretation. Factory Mutual is an insurance driven code and the SYNC boiler must be factory trimmed to meet Factory Mutual. The well known Industrial Risk Insurers code has been purchased by General Electric Company and replaced with their own “GE Gap”... - Page 29 Designer’s Guide / SYNC Boiler DETERMINE THE UNIT LOCATION Locate the appliance so that if water connections should leak, water damage will not occur. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the unit. The pan must not restrict combustion airflow.
- Page 30 2000 feet. Ratings should be reduced at the rate of 4 percent for each 1000 feet above sea level. The SYNC boiler must be factory trimmed for installation at an altitude range GREATER than 4500 feet above sea level.
-
Page 31: Appendix A
Designer’s Guide / SYNC Boiler Appendix A Boiler Piping Diagrams... - Page 32 Designer’s Guide / SYNC Boiler PAGE A1 NEAR BOILER PIPING The illustration is for concept only and should not be used for actual installation without engineering or technical advice from a licensed engineer. All necessary system equipment may not be illustrated.
- Page 33 Designer’s Guide / SYNC Boiler PAGE A2 NEAR BOILER PIPING WITH LOW LOSS HEADER The illustration is for concept only and should not be used for actual installation without engineering or technical advice from a licensed engineer. All necessary system equipment may not be illustrated.
- Page 34 Designer’s Guide / SYNC Boiler PAGE A3 SINGLE BOILER WITH HOT WATER GENERATOR The illustration is for concept only and should not be used for actual installation without engineering or technical advice from a licensed engineer. All necessary system equipment may not be illustrated.
- Page 35 Designer’s Guide / SYNC Boiler PAGE A4 DOUBLE BOILERS WITH HOT WATER GENERATOR The illustration is for concept only and should not be used for actual installation without engineering or technical advice from a licensed engineer. All necessary system equipment may not be illustrated.
-
Page 36: Appendix B
Designer’s Guide / SYNC Boiler Appendix B Technical Data Boiler Component Breakdown... - Page 37 Designer’s Guide / SYNC Boiler SYNC – the components, the design 1. Access Cover - Front The removal of this panel is accomplished without tools and provides access to the gas train and the heat exchanger. 2. Air Intake Adapter Allow for the connection of the air intake pipe to the boiler.
- Page 38 Designer’s Guide / SYNC Boiler 21. Gas Shut Off Valve (Outside the boiler) A manual valve provided to isolate the boiler from the flow of incoming gas supply. 22. Gas Valves Combination gas valves, one on each heat exchanger. Operating on negative air pressure from the blower, the valves allow gas to flow only if the valves are powered and the combustion air is flowing.
- Page 39 Designer’s Guide / SYNC Boiler SYNC 1000 – 1500 Front View Rear View Left Side (inside view) Right Side (inside view)
- Page 40 Lochinvar products. This is a screen shot of the SYNC webpage. From the home page, click the “Boilers” button on the left side of the page. This takes you to a new page listing all the Lochinvar product families. Click on the SYNC in the top row.
- Page 41 Designer’s Guide / SYNC Boiler Notes ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________ ______________________________________________...
- Page 42 3 0 0 M a d d o x S i m p s o n P a r k w a y, L e b a n o n, T N 3 7 0 9 0 | 6 1 5 - 8 8 9 - 8 9 0 0 | f a x : 6 1 5 - 5 4 7 - 1 0 0 0 | w w w . L o c h i n v a r .c o m SYNC-DG-01 (Revised SYNC-DG-01 5/10)
Need help?
Do you have a question about the SYNC and is the answer not in the manual?
Questions and answers