Vertical Packaged Storage Plate Water Heaters

The SPH Series water heaters are designed to work in conjunction with condensing or specialty hydronic boilers. The plate type heat exchanger maximizes the heat transfer between the boiler water and the domestic water returning water to the boiler lower than the traditional u-bend heat exchangers allowing these heaters can use less gpm of boiler water and low temperature boiler water. The SPH is available in a variety of storage tank volumes from 60 – 680 gallons with the ability to heat up to 2,500,000 BTU/hr of hot water.

  • Standard Equipment

    ASME Code Constructed National Board Registered Storage Tank

    CEMLINE® tanks are designed and constructed in accordance with the latest A.S.M.E. Code regulations using pressure vessel quality plate and certified welders. An A.S.M.E. code certificate is provided and all vessels are registered with the National Board of Boiler and Pressure Vessel Inspectors. Vessels are normally built for 125 psig maximum working pressure but can be furnished for pressures as low as 15 psig and as high as 500 psig.

    Stainless Steel Tank

    CEMLINE SSH water heaters are constructed with a solid 316-L grade stainless steel vessel. 316-L stainless steel is acknowledged as the most corrosive resistant stainless used for water heaters. A CEMLINE SSH water heater with a 316-L stainless steel vessel will give the customer many years of service without concern of corrosion or tank failure.

    Stainless Steel Threaded Connections

    CEMLINE SSH water heaters are constructed with solid 316-L stainless steel openings. This grade of stainless steel is chosen for its proven long life and corrosion resistance.

    3" Fiberglass Insulation

    CEMLINE heaters are furnished with 3″ thick Fiberglass insulation. This high quality insulation conforms to the latest ASHRAE standards for commercial water heaters, and has proven to be an extremely reliable means of minimizing heat loss.

    20 Gauge Steel Jacket with Hammertone Enamel Finish

    CEMLINE packaged units are neatly and attractively covered with a 20 gauge steel jacket over the Fiberglass insulation. The jacket protects the insulation, and is professionally painted with superior quality enamel to allow the added importance of an easy to maintain surface.

    Structural I-beam Support Skid Base

    CEMLINE heaters are mounted on structural I-Beam support skids designed as a permanent base. This skid is pre-engineered to allow correct support for the heater.

    ASME Relief Valve-Pressure and Temperature

    CEMLINE packages are provided with ASME pressure-temperature relief valves sized to relieve the total BTU input of the heating coils.

    Digital Thermometer

    CEMLINE heaters are provided with a digital tank thermometer with LCD readout to monitor temperature of the water within the vessel. The thermometer will be console mounted with a compound steam pressure gauge to monitor steam pressure at the coil. (Units heated with boiler water will be supplied with a boiler water thermometer to monitor temperature of incoming boiler water).

    Water Pressure Gauge

    CEMLINE packaged heaters are supplied with a large, easily readable pressure gauge.

    Control Valve

    CEMLINE package units are offered with several options of control, depending on specific requirements or desired preferences. Valves can be provided of the pilot operated, pneumatically operated or electronic type. Control valves are factory sized and installed so the owner may rest assured that the valve provided with the heater is correctly fitted and engineered to meet the specific job requirements.

    U-Bend heating coil, rolled into copper lined tube sheet

    CEMLINE manufactures a complete line of boiler water, steam, and high temperature hot water heating coils, which are constructed of copper or copper nickel or stainless steel tubing. The tube sheets for these coils are copper lined, and units provided with circulating pumps are designed with a copper wrapper surrounding the coil to provide an efficient means of providing the best heat transfer from the coil to the water to be heated. Recovery systems are quickly and efficiently sized to handle specific load requirements to meet any need.

    Integral Bronze Circulator

    Bronze fractional circulating pump circulates the water over the coil, thereby maximizing the heat transfer efficiency of the coil. The pump is selected to match the operating conditions of the water heater.

    Single Solenoid Safety System

    Standard Safety System
    This is an over-temperature safety system which will close the main control valve upon an over-temperature condition. This system utilizes a digital electronic adjustable thermostat with LCD readout which monitors the temperature of the water and if an over-temperature condition is detected, sends an electric signal to the valve, thereby closing the valve. This system requires a 120 volt 5 amp circuit.

    Solid State Operating Control

    The CEMLINE CEM-TROL® incorporates operating and limit functions in one solid state controller. The controller features a LED display of the temperature and on board operating PID temperature control along with high temperature safety cut offs and alarm indications. The CEM-TROL® simplifies the control of the Packaged Water Heater, enhances the look of the product, and follows industry trend to solid state controls.

    Alarm Bell

    An alarm bell is furnished to sound an alarm in the event that either the primary or secondary high temperature limits are exceeded. An alarm silencing relay allows manual pressing of a button to silence the alarm bell, but red warning light remains on until the alarm condition is corrected.

    Remote Start/Stop

    This feature allows the Packaged Water Heater to be started or stopped from a remote location. Typically this would be accomplished from the Building Automatic System (BAS). Requires a dry contact suitable for 24 Vac and 1 amp.

  • Components



    Electronic Control Valve

    Electronically operated control valves use a solid state temperature sensor which is wired to an electronic control module. The electronic control module has an adjustable set point. The control module compares the set point with the sensed temperature and sends an electric signal to a magnetic linear actuator on the control valve. The magnetic linear actuator modulates the control valve and regulates the amount of boiler water through the valve to maintain the set point of the controller. When the set point is achieved, the controller sends a signal to the valve actuator and the valve closes. In the event of high temperature loss or loss of building power, the limit control closes the electric power to the controller which closes the valve.

    Two Way Valve

    A two way valve modulates from fully closed to fully open varying the amount of hot water circulated through the coil to maintain the desired output temperature. When closed the two way valve may cause a change in the heating water loop pressure.

    Three Way Valve

    A three way valve modulates from directing all heating water through the coil to directing no heating water through the coil, varying the amount of hot water circulated through the coil to maintain the desired output temperature. The pressure drop in the heating system will be relatively constant with a three way valve.


    Double Solenoid Safety System

    An optional safety system, which will deactivate the main control valve as described in solenoid safety system, will also activate a second solenoid valve to drain excessively heated water from the heater. The controller is designed to permit different set points for the valve closure and draining.

    Double Wall Coil

    Double wall coils have inner and outer tubes with a vented leak path. If either the inner or outer tube fails, no cross contamination of potable water is possible and a visible indication of the leak will show. Double wall coils are only available in 3/4″ OD tubing.

  • Advantages


    Cemline Vertical Packaged Storage Boiler Water Fired Plate Heat Exchanger Water Heater (SPH) is a perfect solution for domestic water heating systems using hydronic boilers including cast iron, copper tube, water tube, or specialty high efficiency condensing boilers. The SPH heat exchanger allows high efficiency condensing boilers to operate more efficiently since the SPH heat exchanger can return the boiler water to the hydronic boiler at lower temperatures than the traditional u-bend heat exchanger. The boiler water can be returned to the boiler as low as 90°F from the SPH water heater.

    The SPH heat exchanger has a high heat transfer rate allowing for maximum heat transfer between the boiler water and the domestic water. As the heat is transferred from the boiler water to the domestic water, the boiler water can experience large temperature drops through the heat exchanger using less boiler water without experiencing laminar flow on the boiler water side of the heat exchanger. The heat exchanger can even allow for temperature crosses between the boiler water outlet and the domestic water outlet temperature, meaning the domestic water outlet temperature can be greater than the returned boiler water temperature.

    This heater can be used in many hydronic heating style applications including those systems using low temperature boiler water. The SPH heater can also be used in condensate systems by recovering heat from the condensate to produce hot water.

    Cemline Vertical Packaged Storage Boiler Water Fired Plate Heat Exchanger Water Heaters (SPH) are completely packaged and ready for use. The tank allows for storage of hot water and all components are sized, mounted and piped prior to shipment. The heaters come complete and require only connection to services.

    Cemline Corporation © Storage Plate Water Heaters are available with Cement Lined STONESTEEL© or 316-L stainless steel vessel in sizes 60, 120, 200, 300, 500, and 680 gallon capacity. The time tested STONESTEEL lining is a unique formulation of hydraulic cement that is durable, reliable, trouble-free lining know for hot water storage. Optionally, the 316-L stainless steel is corrosion resistant and with solid 316-L stainless steel vessel no lining is required.

    The Cemline SPH comes factory standard with a either a 2 or 3-way electronically operated boiler water control valve. The 3-way electronically operated control valve allows for close temperature control of the water heater by modulating flow of the boiler water through the heat exchanger. The 1000:1 turn down ratio of the control valve allows for accurate control of these water heaters.

    WARNING: SPH water heaters are not recommended for water with hardness over 140 parts per million. If water hardness exceeds 140 ppm, either put a water softener in the system or use Cemline SWH series water heaters.

  • Cem-Trol II


    Buit-in PID Control Signal

    PID Control Signal used to modulate an electronic control valve or to control I-P transducer modulating an air operated control valve. The PID controller allows for precise pressure control of the unfired steam generator.

    Built-In LCD Touch Screen Display

    The STEAM-TROL® features an easy to read and operate LCD touch screen display. The STEAM-TROLdisplay indicates pressure set point, operating pressure, PID voltage output, and level control output. The STEAM-TROL® touch screen display has an easy to navigate menu system for adjusting the settings of the unfired steam generator.

    Built-in On-Off Switch

    Allows for local on-off and is convenient for service in the unlikely event service is required.

    Built-in Alarm Horn

    The alarm horn will sound and fault LED will light on high pressure, low water, or low pressure. The STEAM-TROL® also features an alarm silence relay which will silence the alarm but not the fault light when the generator is being serviced. When the fault is cleared, both the alarm and fault light will automatically reset.

    Built-in Timer for Timed Blow Down

    If the timed blowdown option is selected, the interval and duration of blow down can easily be selected in the STEAM-TROL®.

    Built-in Relay for Water Feed

    The STEAM-TROL® operates in conjunction with the level control to signal the feedwater solenoid or feedwater pump to maintain the correct water level in the unfired steam generator.

    Built-in Modulating Water Feed

    The STEAM-TROL® operates in conjunction with the level control to signal the to a modulating feedwater valve to maintain the correct water level in the unfired steam generator.

    Built-in Operating Pressure Readout

    The STEAM-TROL features an easy to read LCD digital readout of the operating pressure.

    Built-in High Pressure Cut-Off and Alarm

    In the event of high pressure the STEAM-TROL® will close the source steam or HTHW supply valve and sound an alarm.

    Built-in Low Pressure Alarm

    If activated, the STEAM-TROL® will sound an alarm if a low pressure condition occurs.

    Built-in LED Display of Functions and Alarms

    The STEAM-TROL® is designed for the user to tell at a glance how the system is operating. The built in LED displays make troubleshooting simple.

    Built-in Remote Pressure Setting

    Built-in Remote Pressure Setting Building Automation System can remotely set the operating pressure using a 4-20 mA signal.

    Built-in Remote Pressure Read-Out

    Building Automation System can remotely set the operating pressure using a 4-20 mA signal.

    Built-in MODBUS RTU to communicate with BAS (Building Automation System) of Functions and Alarms

    This control allows for simple and reliable interface with the BAS via MODBUS RTU via a RS-485 connection so the BAS can monitor the unfired steam generator from a remote location.

    Built-in Contact to Notify BAS (Building Automation System) of Functions and Alarms

    This control allows for simple and reliable interface with the BAS via dry contact closures so the BAS can monitor the unfired steam generator from a remote location. The BAS can also start and stop the packaged water heater.