Crestron electronic 3.5, 2.5, 1.5 service manual 2Main Menu Screen

Page 52

Installation & Operation Manual

10 Operating information

Use the Main Menu Screen (FIG. 10-2) to access the screens necessary to set temperatures, operating conditions, and monitor boiler operation.

The Crest is equipped with a SMART TOUCH control system. All menu options are accessed by touching the screen with your finger or a stylus from a PDA.

Figure 10-2Main Menu Screen

The Main Menu Screen allows navigation to nine (9) additional screens which are used to set temperatures, operating conditions, and monitor boiler operation. These screens are as follows:

•Home - Navigates back to the Home Screen.

•Setup - Allows access to 12 other screens for the adjustment of the control parameters.

•Cascade - Shows the status of multiple boilers connected together in a cascade arrangement (Leader only).

•Modulation - Shows the status of the two (2) gas train systems used in the boiler.

•BMS - Shows the information from a Building Integration System.

•Pumps - Allows the installer to configure the boiler, system, and DHW pumps.

•History - Shows the operating and fault history of the control module.

•Graphs - Allows the selection of items to be graphed on a chart.

•Service - Allows the installer to control the fan speed of the individual combustion systems for the purposes of combustion analysis. Service Mode will override all other heat demands, however, all limits will remain active.

Reference the Crest Service Manual for more information regarding the nine (9) accessible screens.

52

Image 52

Contents Save this manual for future reference Contents When servicing boiler Please read before proceedingCrest How it works BlowersCrest How it works Models 1.5 2.0 2.5 3.0 Ratings Crest Ahri RatingInstallation must comply with Determine boiler locationBefore locating the boiler, check Provide clearancesProvide air openings to room Flooring and foundationVent and air piping Prevent combustion air contaminationProducts to avoid When using an existing vent system to install a new boilerAreas likely to have contaminants When removing a boiler from existing common vent system Remove boiler from wood pallet 7Combustion Air from Outside Single Opening Minimum Recommended Combustion AIR Supply to Equipment Room Direct venting General ventingOptional room air Install vent and combustion air piping Air inlet pipe materialsApproved Stainless Steel Vent Manufacturers Make Model Air intake/vent connectionsRemoving from existing vent Common venting Vertical direct venting Vent/air termination verticalDetermine location Prepare roof penetrationsMultiple vent/air terminations 4Alternate Vertical Terminations with Multiple BoilersSidewall direct venting Vent/air termination sidewallPrepare wall penetrations 2Clearance to Doors and WindowsRoom air 4Multiple Vent Terminations must also comply with FigureHydronic piping Model Circulator sizing20F 40F 60F Near boiler piping components System Multiple Boilers Common Header Primary / Secondary Flow For all equipment and detailing required by local codes Hydronic piping Gas connections Connecting gas supply pipingModel Gas Inlet Size Natural gas Propane GasGAS Piping Size Chart Check inlet gas supplyGas valve replacement Gas PressureInstallation must comply with Field wiringLine voltage connections Enable Outdoor temperature sensorLouver proving switch Low voltage connectionsAuxiliary switch 1 Alarm contactsWiring of the cascade System supply sensorWiring FieldCondensate disposal Condensate drainFreeze protection when used Start-upCheck/control water chemistry Fill and test water systemCheck for gas leaks Check thermostat circuitsInspect condensate system Inspect/check condensate lines and fittingsFinal checks before starting the boiler Start the boilerIf boiler does not start correctly Check system and boilerFor Your Safety Read Before Operating Set space heating operation Gas Natural Gas Propane ValveConfiguration of the cascade Verify HWG circulator mode Set HWG target temperatureSet clock Operating information GeneralProtection features Boiler temperature regulation Outdoor reset operation, if usedCascade Sequence of operation Crest control module Home Screen2Main Menu Screen Maintenance Maintenance and annual startup Service technicianOwner maintenance See the Crest User’s Information Manual for InstructionsMaintenance Flue vent system and air piping Check water systemCheck expansion tank Check boiler relief valveCheck ignition ground wiring Check all boiler wiringCheck control settings Check flame signalCleaning boiler heat exchanger Review with ownerHandling ceramic fiber materials Niosh stated First AidDiagrams Integrated Control2Wiring Diagram