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Related Manuals for heat-timer ELITE Series
Summary of Contents for heat-timer ELITE Series
- Page 1 INSTALLERS AND USER INSTALLATION AND OPERATION MANUAL ELITE SERIES - SMC SNOWMELT CONTROL WITH OPTIONAL BACNET COMMUNICATION HEAT-TIMER CORP. 059115–00 REV. C...
- Page 2 WARNING • This Heat-Timer control is strictly an operating control; it should never be used as a primary limit or safety control. All equipment must have its own certified limit and safety controls required by local codes. The installer must verify proper operation and correct any safety problems prior to the installation of this Heat-Timer control.
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Page 3: Table Of Contents
WARM WEATHER CUTOFF (WWC) WIRING THE SHUTDOWN / ENABLE IDLE SET POINT (ISP) WIRING THE PROVE HEATING CURVE WIRING TO A MULTIPLE BOILER CONTROLLER HEATING CURVE TABLE WIRING TO BACNET MSTP SYSTEM SETTINGS COLD WEATHER CUTOFF (CWC) HEAT-TIMER CORP. 059115–00 REV. C... - Page 4 SMC CONTROLLING MULTI-BOILER WARM WEATHER CUTOFF (WWC) CONTROL - WIRING COLD WEATHER CUTOFF (CWC) IDLE SET POINT (ISP) SPECIFICATIONS HEATING CURVE SMC SPECIFICATIONS SLAB SENSOR SPECIFICATIONS HEATING GAIN MINIMUM RUNTIME NOTES ALARMS MENU ALARM WARRANTY ALARM LIST HEAT-TIMER CORP. 059115–00 REV. C...
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Page 5: Smc Function Chart
System Output operates the system pump or valve Boiler or Motorized Valve Connect to BACnet modulation output signal or Interface Module 4-20mA Ext. Interface Set Output relays to operate Point boiler, slab pump, alarm, and modulating valve HEAT-TIMER CORP. 059115–00 REV. C... -
Page 6: Definitions
ISP— Idle Set Point. See "Idle Set Point (ISP)" on page CWC—Cold Weather Cutoff. See "Cold Weather Cutoff (CWC)" on • page • (Slab ΔT)— The Slab Delta T is the difference in temperature between the Slab Supply temperature and the Slab Return temperature. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 7: Smc Operation Modes
The Snowmelt Control (SMC) is designed to operate a radiant slab Hydronic heating system to prevent snow and ice accumulation on sidewalks, driveways, and other areas where buildup is undesirable. It does this using the provided Slab Sensor. This is the Heat-Timer preferred operation mode NOTICE In Slab Sensor Type mode, the slab sensor base and its conduit most be installed before the slab installation. - Page 8 Slab Target = Off Boiler = Off Boiler = Off Valve = Close Valve = Close Salb Pump = Pulse to eliminate freezing. Salb Pump = Pulse to eliminate freezing. System Pump = Off System Pump = Off HEAT-TIMER CORP. 059115–00 REV. C...
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Page 9: Typical Slab Sensor Mode Installation Steps
Select "Boiler" if the slab loop is heated directly by a modulating boiler. Select "Ext. Interface" if the SMC is connected to a Heat-Timer multi- boiler control (Multi-MOD Platinum, Mini-MOD, SQ-Elite, etc..). Then set the EMS 4 and 20mA set points to match the boiler control 4-20mA set points. - Page 10 SMC OPERATION MODES WARNING Heat-Timer recommends installing a high-limit control to shutdown the heating system in case of excessive high slab supply temperatures. NO MOISTURE DETECTION OUTDOOR SENSOR OPERATION OVERVIEW AVAILABLE Slab Target = Off Boiler = Off The Snowmelt Control (SMC) is designed to control under slab Valve = Close heating systems to prevent accumulations of ice or snow.
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Page 11: Typical Outdoor Mode Installation Steps
Maximum Slab Supply As per slab design engineer . See "Maximum Slab Supply" on page Minimum Boiler Return As per boiler manufacturer specifications. See "Minimum Boiler Return" page 44. Season Winter. See "Season" on page HEAT-TIMER CORP. 059115–00 REV. C... -
Page 12: Typical Snowmelt Piping Configuration
Sending a 4-20mA set point to a multi-boiler sequencing control (Multi-MOD Platinum, Mini-MOD, SMC). In this case , all boilers must be of the condensing type. See "SMC Controlling Multi-Boiler Control - Piping" on page In this scenario set the following startup settings: Control Mode Ext. Inerface HEAT-TIMER CORP. 059115–00 REV. C... -
Page 13: Installation
The Enclosure Wiring Cover: seals the wires from the external environment. It has two screws to hold it to the base and a hole to secure a lock on the wiring enclosure. A plastic web that separates the wiring chamber into high and low volt sections has been provided. HEAT-TIMER CORP. 059115–00 REV. C... - Page 14 When purchasing a padlock for the enclosure, the maximum shank diameter should not exceed 1⁄4" WARNING Use only the provided Enclosure Knockouts. Do not DRILL HOLES THROUGH THE ENCLOSURE, AS IT WILL VOID CONTROL WARRANTY. HEAT-TIMER CORP. 059115–00 REV. C...
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Page 15: Sensor Installation
Slab Sensor. However, its operation has no effect on the slab temperature sensor or the control operation. Dummy Sensor Plastic Plug Screws Slab O Ring Sensor Sensor Sensor Cable Base Conduit Hole NOTICE The slab sensor base and its conduit must be installed before the slab installation. HEAT-TIMER CORP. 059115–00 REV. C... - Page 16 WARNING The Slab Sensor is located outdoors and is likely to become covered with dirt that will adversely affect the sensor's moisture detection sensitivity. Therefore, it is important to periodically clean the sensor surface. HEAT-TIMER CORP. 059115–00 REV. C...
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Page 17: Outdoor Sensor Installation
The sensor wires can be extended up to 500’ using 18 AWG 2-conductor shielded cable (HT# 703001-01). • Do not connect the shields at the sensors' ends. However, connect them to SMC terminals 27 and 29. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 18: Wiring The Power
Connect the ground to Earth ground terminal 3 (G). Do not use the neutral line as a ground. Earth • Heat-Timer recommends the installation of a Surge Suppressor Ground and a Power Switch before the Power Line connection for safety and ease of service. -
Page 19: Output Wiring
After the SMC turns the boiler off or fully closes the motorized valve, it keeps the System Pump energized for the Run-On period. The Run-On period helps protect the boiler from reaching its limits System Pump by transferring its energy into the system. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 20: Wiring To A Floating Motorized Valve
0-10V Output terminals 22 and 23. See "0-10V Modulating Boiler or Valve Wiring" on page • When operating a 4-20mA modulating motorized valve use the SMC 4-20mA Output terminals 24 and 25. See "4-20mA Modulating Boiler or Valve Wiring" on page 21. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 21: Wiring To An On/Off Boiler
4-20mA Modulating Boiler or Valve Wiring Terminals (25) and (25) • Wire the boiler or valve (+) terminal to the SMC terminal 24 (mA). • Wire the boiler or valve (-) terminal to the SMC terminal 25 (-). HEAT-TIMER CORP. 059115–00 REV. C... -
Page 22: Wiring Alarm Output To Visual/Audio Alarm
All of the SMC's inputs are either sensors or dry-contact. Do not connect any power to the input terminals as it may damage the input. WARNING Class 1 voltages wires (low voltage) must use a different knockout, conduit, and path from any Class 2 voltage wires (high voltage). HEAT-TIMER CORP. 059115–00 REV. C... -
Page 23: Wiring The Slab Sensor
Temperature sensor wires have no polarity. Connect the sensor wires to the SMC's terminal 16 (Slab Temp/Out/Brown) and terminal 17 (Sensor Com/ Blue). • Connect the shield to terminal 17 with one of the sensor wires. Do not connect the shield at the sensor. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 24: Wiring The Boiler Return Sensor
• The use of the Boiler Return to help protect the boiler from condensation and thermal shock is optional. A Heat-Timer temperature sensor (HT #904250-00 or HT# 904220-00) immersed in a 3/8 ID well (HT# 904011-00) is required. Both the sensor and well must be purchased separately. -
Page 25: Wiring The Shutdown / Enable
Do not remove the jumper unless it is replaced by a System Prove signal. • Bring the two wires from the dry contact to the Prove 34 and 35 terminals. No voltage can be placed across the Prove Prove terminals. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 26: Wiring To A Multiple Boiler Controller
• For the SMC to communicate with a multiple boiler control, i.e. an Elite Series SQ, Mini MOD or Mini MOD CNC, the use of the EMS 4-20mA Interface Module is required. The EMS 4-20mA Interface Module must be ordered separately (HT# 926741-00). -
Page 27: Wiring To Bacnet Mstp
Connect the provided CAT-5 cable to both the BACnet Interface Module (Product Comm Ethernet port) and the SMC's (RS485 port). The BACnet Interface Module is powered through the control. See BACnet Interface Module Manual for BACnet setup. BACnet MSTP WIRING TO BACnet NETWORK ETHERNET CABLE (SUPPLIED) HEAT-TIMER CORP. 059115–00 REV. C... -
Page 28: Activate The Battery
Remove the plastic tab that covers the battery to allow the battery holder contacts to touch the battery. Battery NOTICE Do not activate the battery unless you plan to keep the control continuously powered. If the control has no power, the battery will lose its charge in 100 days. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 29: Display And Buttons
Goes back to one Goes to the next sensor time menu step history SLPA Supply and 120°F 38 °F Slab Temp. Return Temp. 102°F Melting at 38 °F Messages Boiler Return 142 °F Button ALARM MENU Function Buttons HEAT-TIMER CORP. 059115–00 REV. C... -
Page 30: Setting The Control To Factory Defaults
TOTAL CLEAR STARTED screen appears. The Display will direct you to the Startup menu to program the control to select the operating modes. TOTAL CLEAR STARTED Release buttons Please wait HEAT-TIMER CORP. 059115–00 REV. C... -
Page 31: Display Messages
The Prove input was shorted and then opened during boiler call (terminals 34 and 35). "Wiring the Prove" on page • Warm Weather Cutoff The slab temperature is above the WWC setting. No output is activate. "Slab Sensor Operation Overview" on page HEAT-TIMER CORP. 059115–00 REV. C... -
Page 32: System Startup Menus
EMS 20MA SET POINT 200°F BACNET BACK SAVE BACNET ENABLE BACNET BAUD Disable 9600 Enable 19200 38400 BACK SAVE BACK SAVE SET PRESENT TIME BACNET ID BACNET ADDRES 12: ** Pm 248000 BACK SAVE BACK SAVE BACK SAVE HEAT-TIMER CORP. 059115–00 REV. C... -
Page 33: System Startup
See "Slab Sensor Operation Overview" on page • If Outdoor is selected, the SMC shall use the Outdoor temperature as the snow melting guide. See "Outdoor Sensor Operation Overview" on page HEAT-TIMER CORP. 059115–00 REV. C... -
Page 34: Control Mode
Default °F DISPLAY UNIT °F Hold MENU Button: <Settings>/<System Startup>/../Control Mode/ External °C Input/Display Unit BACK SAVE • This option allows you to change the sensors' display and all temperature settings standard between Fahrenheit and Celsius. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 35: Ignition Start
The control has a coin Lithium battery (CR2032) (HT# 020002-00) that is used to maintain the control's time during power outages. This battery can maintain the clock for up to a total of 100 days. See "Activate the Battery" on page HEAT-TIMER CORP. 059115–00 REV. C... -
Page 36: Bacnet Communication
The BACnet ID is a unique 32 bit number that identifies the control within the BACnet network. No two ID shall be the same even if dealing across networks. 248000 • It must be provided by the BACnet Network Administrator. BACK SAVE HEAT-TIMER CORP. 059115–00 REV. C... -
Page 37: Operating Menus
MINIMUM RUNTIME BACK SAVE MIN BOILER RETURN 1 Hr 140°F BACK SAVE PUMP EXERCISE BACK SAVE MAX DELTA TEMP MAX SLAB SUPPLY BACK SAVE 20°F 120°F BACK SAVE PUMP RUN-ON BACK SAVE 2 Min BACK SAVE HEAT-TIMER CORP. 059115–00 REV. C... -
Page 38: Operating Settings
• Set the control to Winter mode during the heating season. • When the heating season is over, it is a good practice to switch the control to Summer to preserve the control battery life. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 39: Warm Weather Cutoff (Wwc)
The ISP is the temperature at which the slab will be held whenever the BACK SAVE SMC is in Idle Mode. See "Slab Sensor Operation Overview" on page • The ISP can be turned OFF, so the slab is not heated unless moisture is detected. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 40: Heating Curve
• ntrol operation remotely or with a switch. If Enable is selected, opening these terminals will disable all outputs. Note that the Slab Pump and System Pump shall de-energize after the Run-on period ends. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 41: Heating Curve Table
108 120 132 143 155 167 179 190 202 100 112 124 136 148 160 172 184 196 208 104 116 128 141 153 165 177 190 202 214 105 120 133 145 158 170 183 195 208 220 HEAT-TIMER CORP. 059115–00 REV. C... -
Page 42: System Settings
Set Point, increase the Heating Gain by two numbers (for example, from 0 to 2). • •After making an adjustment, do not make any additional changes for at least 30 minutes before evaluating its effect on the system. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 43: Minimum Runtime
SMC will output to the slab. The setting should be determined by the slab design engineer. • The SMC will modulate the motorized valve to close or reduce the boiler modulation if it calculates t HEAT-TIMER CORP. 059115–00 REV. C... -
Page 44: Minimum Boiler Return
In addition to having a timed setting the Antifreeze option can be set to ON. This is the best option for energy efficient Slab Pumps. • The OFF option stops the Slab Pump when in Idling mode above the ISP. Also, it does not run the Slab pump when the slab temperature is below the CWC. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 45: Maintenance Menu
SELECT 840 Hr BACK CLEAR SAVE SENSORS TRIM Slab Supply +0°F Slab Return +0°F Slab Temp. +0°F Outdoor +0°F Water Sensitivity BACK SELECT SMC V1.00 Sensor: Slab Mode: Motorized Valve Ext. Input: Shutdown BACK SAVE HEAT-TIMER CORP. 059115–00 REV. C... -
Page 46: Maintenance Settings
This is the cumulative number of hours the SMC has energized the BACK CLEAR SAVE boiler output relay since the last time the runtime was cleared. • The Runtime can be reset by pressing the two middle buttons. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 47: Sensors Trim
Hold MENU Button: Slab Supply +0°F Slab Return +0°F • The Heat-Timer temperature sensors are very accurate, and normally Slab Temp. +0°F require no calibration. However, sometimes it may be desirable to make Outdoor +0°F small adjustments to the displayed value. - Page 48 COLD WEATHER CUTOFF SMC settings the Program/ Run Switch must be set to 1 Hr 20°F Program. BACK SAVE BACK SAVE HEATING GAIN IDLE SET POINT 34°F BACK SAVE BACK SAVE HEATING CURVE BACK SAVE HEAT-TIMER CORP. 059115–00 REV. C...
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Page 49: User Menus
WWC. This means that if the WWC is set for 38°F, the slab temperature must fall to 37°F before the heating system is activated. The heating system will remain activated until the slab temperature reaches 39°F. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 50: Cold Weather Cutoff (Cwc)
This is the temperature at which the slab will be held during Idle Mode. See "Slab Sensor Operation Overview" on page • The ISP can be turned OFF, so the slab is not heated unless moisture is detected. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 51: Heating Curve
Set Point, increase the Heating Gain by two numbers (for example, from 0 to 2). • After making an adjustment, do not make any additional changes for at least 30 minutes before evaluating its effect on the system. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 52: Minimum Runtime
The Minimum Runtime starts a timer once slab heat is activated. The SMC will continue melting until either all the moisture has evaporated off the sensor or until the Minimum Runtime has ended, whichever comes last. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 53: Alarms Menu
The Alarm button function flashes only when a least one alarm condition exist. • The Alarm button opens the alarm list menu. • To clear current alarm list press the two middle buttons (marked ACK) together. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 54: Alarm List
The Slab Temperature did not reach its target within 24 hours. See • Slab Temp. low "Troubleshooting" on page • Supply Temp. low • The Slab Supply Temperature did not reach its target within 2 hours. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 55: Bacnet Variable List
Hours Integers Only (0,1,2...) 1900 PRUNON Pump Runon Time Minutes Integers Only (from 0 to 60) 2000 POEX Pump Exercise Integers Only (1,2) 0=Off, Integers Only (from 0 to 60), 2100 ANTI Anti-Freeze Minutes 61=On HEAT-TIMER CORP. 059115–00 REV. C... - Page 56 Slab Supply Sensor 3300 SSUPYFAIL Fail 3300 BURN Burner Relay 0 = De-Energized, 1 = Energized 3400 SPUMP Slab Pump Relay 3500 Modulation Output Percent % Modulation (0 - 100%) 3600 TIME TIME Minutes Time since midnight(1,2,3...1440) HEAT-TIMER CORP. 059115–00 REV. C...
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Page 57: Bacnet Pics Statement
VERSION VERSION SMC BACnet Control 2.xx VENDOR VENDOR ID ADDRESS AND PHONE Heat-Timer Corporation 20 New Dutch Ln.Fairfield, NJ 07004 - (973)575-4004 PRODUCT DESCRIPTION The SMC is a Snow Melt Control BACNET STANDARDIZED DEVICE PROFILE (ANNEX L) PRODUCT DEVICE PROFILE... -
Page 58: Segmentation Capability
WINDOW SIZE (MS/TP PRODUCT LIMITED TO 1) Able to transmit segmented messages Able to receive segmented messages DEVICE ADDRESS BINDING PRODUCT STATIC BINDING SUPPORTED SMC BACnet Control CHARACTER SETS PRODUCT CHARACTER SETS SUPPORTED SMC BACnet Control ANSI X3.4 HEAT-TIMER CORP. 059115–00 REV. C... -
Page 59: Troubleshooting
Precipitation not Melting on Slab Sensor: If the precipitation is accumulating on the sensor and not melting, check the ohm value of Red and Black wires of the Slab Sensor. It should read from 50Ω to 100Ω ohms. Otherwise, the sensor may be damaged. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 60: Snow Accumulation
The BaCnet Interface Module MSTP wiring. If only the Red wire is on for along time, make sure that the ground • wire connects the BACnet Interface Module to the BACnet network. If that did not solve the communication connection, try reversing the A and B wires. Different RS485 wiring may label their terminals differently. HEAT-TIMER CORP. 059115–00 REV. C... -
Page 61: Smc Controlling A Modulating Water Boiler - Piping
Control Mode = Boiler NOTICE Due to the uniqueness of each installation, Heat-Timer Corp. is not responsible for any installation that is based on any electrical or piping diagram generated. The provided illustrations are to demonstrate the control operating concept only. -
Page 62: Smc Controlling A Modulating Water Boiler - Wiring
SMC CONTROLLING A MODULATING WATER BOILER - WIRING 120VAC BURNER PROVE LIMIT CIRCUIT 120VAC SNOW MELT SENSOR * SHUTDOWN SLAB PUMP 120VAC SMC SETTING: ALARM • Sensor Type = Slab* • Sensor Type = Outdoor** • Control Mode = Boiler HEAT-TIMER CORP. 059115–00 REV. C... -
Page 63: Smc Modulating A 3-Way Motorized Valve - Piping
Control Mode = Motorized Valve NOTICE Due to the uniqueness of each installation, Heat-Timer Corp. is not responsible for any installation that is based on any electrical or piping diagram generated. The provided illustrations are to demonstrate the control operating concept only. -
Page 64: Smc Modulating A 3-Way Motorized Valve - Wiring
PUMP SENSOR * 24VAC TRANSFORMER BURNER LIMIT CIRCUIT 120VAC 120VAC SLAB PUMP 120VAC FLOATING MOTORIZED VALVE SMC SETTING: • Sensor Type = Slab* • Sensor Type = Outdoor** ALARM • Control Mode = Motorized Valve HEAT-TIMER CORP. 059115–00 REV. C... -
Page 65: Smc Modulating A 3-Way Motorized Valve - Piping
Control Mode = Motorized Valve NOTICE Due to the uniqueness of each installation, Heat-Timer Corp. is not responsible for any installation that is based on any electrical or piping diagram generated. The provided illustrations are to demonstrate the control operating concept only. -
Page 66: Smc Modulating A 3-Way Motorized Valve - Wiring
SNOW MELT SENSOR * 24VAC TRANSFORMER BURNER LIMIT CIRCUIT 120VAC 120VAC SLAB PUMP 120VAC FLOATING MOTORIZED VALVE SMC SETTING: • Sensor Type = Slab* • Sensor Type = Outdoor** ALARM • Control Mode = Motorized Valve HEAT-TIMER CORP. 059115–00 REV. C... -
Page 67: Smc Modulating A 2-Way Motorized Valve - Piping
Control Mode = Motorized Valve NOTICE Due to the uniqueness of each installation, Heat-Timer Corp. is not responsible for any installation that is based on any electrical or piping diagram generated. The provided illustrations are to demonstrate the control operating concept only. -
Page 68: Smc Modulating A 2-Way Motorized Valve - Wiring
SNOW MELT SENSOR * 24VAC TRANSFORMER BURNER LIMIT CIRCUIT 120VAC 120VAC SLAB PUMP 120VAC FLOATING MOTORIZED VALVE SMC SETTING: • Sensor Type = Slab* • Sensor Type = Outdoor** • Control Mode = Motorized Valve ALARM HEAT-TIMER CORP. 059115–00 REV. C... - Page 69 SLAB SENSOR DIAGRAMS HEAT-TIMER CORP. 059115–00 REV. C...
- Page 70 SLAB SENSOR DIAGRAMS HEAT-TIMER CORP. 059115–00 REV. C...
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Page 71: Specifications
Brass Sensor with 90 Feet of cable, Brass Base, Dummy Plastic Plug Operating Temperature Range -30°F/-34°C to 250°F/121°C Sensor Case Material Brass Cable Length Provided 65 Feet Sensor and housing Dimensions: 3 7/16” Diameter x 3 3/4” h Weight: 5 Pound HEAT-TIMER CORP. 059115–00 REV. C... -
Page 72: Slab Sensor Specifications
PN 904198-180 Snow Melt Precipitation Sensor (Sensor Only) with 270 ft of Wire PN 904198-270 Snow Melt Precipitation Sensor Housing PN 904199-00 Snow Melt Precipitation Sensor Complete (65 ft of Wire with Housing) PN 904200-00 HEAT-TIMER CORP. 059115–00 REV. C... -
Page 73: Notes
NOTES HEAT-TIMER CORP. 059115–00 REV. C... - Page 74 NOTES HEAT-TIMER CORP. 059115–00 REV. C...
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Page 75: Warranty
Heat-Timer Corporation will invalidate the warranty. Batteries are not included in this warranty. This warranty applies only to the original user and is not assignable or transferable. Heat-Timer Corporation shall not be responsible for any maladjustments of any control installed by Heat-Timer Corporation. It is the user’s responsibility to adjust the settings of the control to provide the proper amount of heat or cooling required in the premises and for proper operation of the heating or cooling system. - Page 76 20 NEW DUTCH LANE, FAIRFIELD, NJ 07004 PHONE: 973-575-4004 FAX: 973-575-4052 HEAT-TIMER.COM HEAT-TIMER CORP. 059115–00 REV. C...
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