Sunlife Enterprises DM240, DM300, DM180 START-UP GAS Heat, Shut Down, PRE-START Check List

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356214-XIM-A-0108

3.Measure the system Amperage draw across all legs of 3 phase power wires.

4.Measure the condenser fan amp draw.

SHUT DOWN

1.Set the thermostat to highest temperature setting.

2.Turn off the electrical power to the unit.

START-UP (GAS HEAT)

PRE-START CHECK LIST

Complete the following checks before starting the unit.

1.Check the type of gas being supplied. Be sure that it is the same as listed on the unit nameplate.

2.Make sure that the vent and combustion air hoods have been properly installed.

OPERATING INSTRUCTIONS

This furnace is equipped with an intermittent pilot and automatic re-ignition system. DO NOT attempt to manually light the pilot.

TO LIGHT PILOT AND MAIN BURNERS:

1.Turn “off” electric power to unit.

2.Turn room thermostat to lowest setting.

3.Turn gas valve knob or switch to “on” position.

4.Turn “on” electric power to unit.

5.Set room thermostat to desired temperature.

(If thermostat “set” temperature is above room tem- perature, pilot burner ignition will occur and, after an interval to prove pilot flame, main burners will ignite).

TO SHUT DOWN:

1.Turn “off” electric power to unit.

2.Depress knob of gas valve while turning to “off” position or turn gas valve switch to “off” position.

POST-START CHECK LIST (GAS)

After the entire control circuit has been energized and the heating section is operating, make the following checks:

1.Check for gas leaks in the unit piping as well as the supply piping.

FIRE OR EXPLOSION HAZARD

FAILURE TO FOLLOW THE SAFETY WARN- ING EXACTLY COULD RESULT IN SERIOUS INJURY, DEATH OR PROPERTY DAMAGE.

NEVER TEST FOR GAS LEAKS WITH AN OPEN FLAME. USE A COMMERICALLY AVAILABLE SOAP SOLUTION MADE SPE- CIFICALLY FOR THE DETECTION OF LEAKS TO CHECK ALL CONNECTIONS. A FIRE OR EXPLOSION MAY RESULT CAUS- ING PROPERTY DAMAGE, PERSONAL INJURY OR LOSS OF LIFE.

2.Check for correct manifold gas pressures. See “Checking Gas Input” page 44.

3.Check the supply gas pressure. It must be within the limits shown on rating nameplate. Supply pres- sure should be checked with all gas appliances in the building at full fire. At no time should the standby gas line pressure exceed 13", nor the operating pressure drop below 5.0" for natural gas units. If gas pressure is outside these limits, con- tact the local gas utility for corrective action.

FIGURE 21 - TYPICAL GAS VALVES

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Contents Installation Table of Contents List of Tables List of FiguresReference Safety ConsiderationsGeneral InspectionApprovals Renewal PartsTon Sunline & Magnum & MagnaDRY Model Number Nomenclature Product NomenclatureInstallation Safety Information InstallationLimitations Location Unit Application DataClearances Rigging and HandlingFixed Outdoor AIR Intake Damper DuctworkFilters Service AccessField Wiring DM ELECTRIC/ELECTRIC and GAS/ Electric Units Electric Heat Application Data Optional Electric Heat Power and Control WiringControl Wire Sizes ThermostatPipe Sizing Optional GAS HeatGAS Heat Application Data GAS PipingExternal Supply Connection External SHUT-OFF Vent and Combustion AIR Hood Vent and Combustion AIR HoodsOptional Power EXHAUST/BAROMETRIC Relief Damper Rain Hood Enthalpy Setpoint Adjustment Four and SIX Point Loads Models Physical DataSize DM Electrical Data -WITHOUT Powered Convenience OutletDM Electrical Data -WITH Powered Convenience Outlet Front View Rear View Dimensions Unit Clearances and Rain Hood Dimensions 15, 20 & 25 TON AIR Temp Altitude Meter Altitude Correction FactorsALTITUDE/TEMPERATURE Conversion Factor High Static Drive CFM 80 m3/s 30 m3/s 10 m3/s 40 m3/s 1030 378 321 258 199 134 1070 417 361 299 240 XIM-A-0108 DM300 Unit Downflow Duct Connections CFM Static RESISTANCES1 Power Exhaust PerformanceBlower Motor and Drive Data Checking AIR Supply CFM PhasingDrop Pressure Nominal CFM Thousands Supply AIR IWGSequence of Operations Overview OperationCooling Sequence of Operation LOW-PRESSURE Limit Switch Flash Codes Safety ControlsReset Compressor ProtectionElectric Heat Anticipator Setpoints Heating Operation ErrorsLimit Control Setting Heat Anticipator SetpointsGAS Valve Piping GAS Heating Operation ErrorsGAS Valve START-UP Cooling POST-START Check List GAS START-UP GAS HeatShut Down PRE-START Check ListChecking GAS Input Manifold GAS Pressure AdjustmentBurner AIR Shutter Adjustment Burner InstructionsGAS Rate Cubic Feet PER Hour TroubleshootingAdjustment of Temperature Rise Cooling Troubleshooting GuideXIM-A-0108 XIM-A-0108 XIM-A-0108 XIM-A-0108 GAS Heat Troubleshooting Guide XIM-A-0108 Unit Flash Codes Unit Control Board Unit Control Board Flash CodesOption Byte Setup Unit Control Board Option SetupXIM-A-0108 Johnson Controls Unitary Products Johnson Controls Unitary Products York Drive Norman, OK

DM300, DM240, DM180 specifications

Sunlife Enterprises has made significant strides in the competitive market of digital management tools with their innovative lineup of products: the DM240, DM300, and DM180. Each of these devices has been engineered to cater to specific operational needs while sharing a common foundation of advanced technology, versatility, and user-centric design.

The DM240 is an entry-level model that caters to small businesses looking for an efficient digital management solution without the hefty price tag. With a compact design and intuitive user interface, the DM240 allows for seamless integration into various work environments. Key features include a high-resolution touchscreen display, which facilitates easy navigation and quick access to essential functions. The device supports wireless connectivity options, ensuring users can manage tasks from anywhere within their operating environment. The energy-efficient design of the DM240 also promotes sustainability without compromising performance.

Moving up the line, the DM300 offers enhanced capabilities for medium-sized enterprises. This model is powered by advanced processing technology, allowing for faster data handling and superior multitasking. The DM300 features expanded memory and storage options, ensuring that users can manage larger datasets effortlessly. Additionally, with built-in advanced security features like biometric authentication and encrypted data storage, businesses can ensure that sensitive information remains protected. The intuitive software interface of the DM300 is designed for ease of use while providing advanced analytics tools to enable users to make data-driven decisions.

At the top of the range is the DM180, a sophisticated solution tailored to large organizations with complex digital management needs. The DM180 showcases a state-of-the-art design with high-performance computing capabilities. It features an expansive multi-touch display, allowing multiple users to interact simultaneously, facilitating collaboration and teamwork. The DM180 is equipped with cloud integration options, promoting real-time data access and sharing among teams, regardless of location. Its scalability ensures that businesses can adapt the system to accommodate growth without compromising functionality. Moreover, it offers comprehensive reporting and analytics tools, empowering organizations to gain valuable insights into their operations.

In summary, Sunlife Enterprises’ DM240, DM300, and DM180 models stand out for their unique features designed to meet the evolving needs of businesses. With a focus on user experience, performance, and security, these devices are poised to help organizations enhance productivity and drive innovation in the digital management landscape.
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