Slant Fin Monitron Eh Boilers Users Manual
Monitron EH Boilers to the manual a72e2688-5484-c824-f140-9b2a47b025d4
2015-02-05
: Slant-Fin Slant-Fin-Monitron-Eh-Boilers-Users-Manual-406997 slant-fin-monitron-eh-boilers-users-manual-406997 slant-fin pdf
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A major answer to the changing heating-fuel situation HOT WATER MODELS IN 9 SIZES 8 kw (27,301 Btuh) to 40 kw (136,506 Btuh) Before purchasing this appliance, read important energy cost and efficiency information available from your contractor. TM Monitron Compact, easy to install for new or “standby” installations Monitron combines the availability and dependability of electricity with the comfort and performance of conventional hydronic heating using baseboard, radiant or cast-iron radiators. TYPICAL WIRING DIAGRAM Monitron as a replacement unit: Works with virtually any existing hot water hydronic radiation system. Although rated in kilowatts, it is also clearly identified by BTU output. Monitron as a standby unit: Particularly suitable for commercial and industrial facilities, or office buildings which can’t risk down-time with their existing heating equipment. If oil or gas is temporarily unavailable, the owner easily switches the heating system to the electric boiler. Monitron as a primary heating unit offers: • The convenience of electricity and the comfort of hydronics. • The elimination of a chimney. • Competitive pricing with electric baseboard systems. • Simple zoning by zone valves. TO ZONE VALVE TRANSFORMER WHEN USED Monitron by Slant/Fin is the electronic-age boiler designed to save energy for new or existing heating systems. Monitron installed as primary boiler. America’s Best - Built Electric Boiler • One piece cast-iron heat exchanger. • Built in air eliminator. • Internal baffles improve heat transfer. Energy-saver electric sequential control package * With manual mild-weather energy-saver switches * NORMAL OPERATIONS OPTIONAL MILD-WEATHER OPERATION When the thermostat calls for heat, the circulator turns on and the first electric heater bank is energized. At preset 30-second intervals, the other heater banks automatically energize. The circulator continues operating until the room thermostat is satisfied. A flow switch supplied by Slant/Fin or others is required. It prevents the elements from being energized unless the circulator is operating. This avoids element burnout. Mild-weather energy savings are made possible through the use of circuit breakers on the breaker panel. This permits the owner to manually switch off one or more of the elements. Then, when just a moderate amount of heat is needed, all the elements are not energized, cycling is reduced, and overheating is diminished. This energy-saving feature is standard on Monitron models EH-12-S through EH-40-S. * All models except EH-8 and EH-10 Standard equipment • • • • • • Dual limit aquastat Altitude pressure and temperature gauge Safety relief valve (unmounted) Circulator relay and heater contactors Circuit breaker (one or two heaters per breaker) Low voltage thermostat with adjustable heat anticipator (packed separately) • Drain cock, 3⁄4 " (packed separately) • Built-in air separator • Cast-iron ASME approved heat exchanger • Terminal blocks for circulator, thermostat, flow switch and for zone valve transformer • Sequencer • Complete jacketing • U.L. listed, ASME authorized • Flow switch. Not included with, but necessary on all models • Circuit breaker for circulator and control circuit. FEATURES 30 PSI PRESSURE RELIEF VALVE CONTACTORS FOR HEATER ELEMENTS SEQUENCER ALTITUDE PRESSURE AND TEMPERATURE GAUGE HEATER ELEMENTS CAST IRON ASME HEAT EXCHANGER DUAL LIMIT AQUASTAT CIRCULATOR RELAY CIRCUIT BREAKERS TERMINAL BLOCKS DIMENSIONS NOTES: 1. May be totally enclosed. 2. All clearance dimensions are minimum. 3. All dimensions are in inches. RATINGS AND SPECIFICATIONS SINGLE PHASE Neutral Lug SINGLE D.O.E Size (AWG) PHASE Capacity Boiler * KW at *(Btu/hr) at Solid Stranded Model No. 240 VAC 240 VAC Cu ¶ AL Cu ¶ AL SINGLE PHASE –– THREE WIRE THREE PHASE –– FOUR WIRE 208 VAC WYE § Grounding Grounding D.O.E Lug Size Lug Size † ** Heater Main Lug † Heater Main Lug Capacity (AWG) (AWG) KW at (Btuh) at Size (AWG) Amps at Amps at Size (AWG) 208 VAC 240 VAC CU ¶ AL 208 VAC ¶ AL Cu ¶ AL CU ¶ AL Cu 208 VAC EH8S 8 27000 14-12 12 6-2/0 14-4 6-4 33 EH10S 10 34000 14-12 12 6-2/0 14-4 6-4 42 ––– ––– EH12S 12 41000 14-12 12 6-2/0 14-4 6-4 50 9.012 31000 EH16S 16 55000 14-12 12 6-2/0 14-4 6-4 67 12.016 41000 EH20S 20 68000 14-12 12 6-2/0 14-4 6-4 83 15.020 51000 EH24S 24 82000 14-12 12 6/2/0 14-4 6-4 100 18.024 EH28S 28 96000 14-12 12 2-250 MCM 14-4 6-4 117 21.028 EH32S 32 109000 14-12 12 2-250 MCM 14-4 6-4 133 EH40S 40 137000 14-12 12 2-250 MCM 6-2/0 ––– 167 * Multiply by 0.751 for values at 208 volts AC. ** Multiply by 0.867 for values at 208 volts AC. † For total current add, to the value shown in the table, the current draw for circulator and/or zone valve transformer (12 Amp. max.), ‡ Leg with the highest value of line current of an unbalanced 3 phase load. ––– ––– ––– ––– ––– ––– ––– ––– ––– ––– 6-2/0 14-4 6-4 25.1 6-2/0 14-4 6-4 ‡38.1 6-2/0 14-4 6-4 ‡48 62000 6-2/0 14-4 6-4 ‡60 72000 6-2/0 14-4 6-4 ‡60 24.032 82000 6-2/0 14-4 6-4 ‡73 30.040 103000 6-2/0 14-4 6-4 ‡95.4 ¶ Aluminum conductors may be used, lug size, conduit size, ampacity and all applicable codes permitting. However, aluminum conductors may not be used for model EH-40 single phase. § 3 phase 240V special model also available. Consult factory for information. Specify Model as follows: Model Number. Single or three Phase. “135S” for single phase, 120V/240V, 120V/208V WYE. 3 wire (see note (1) below) with control circuit breaker. “345S” for three phase, 120V/208V WYE. 4 wire (see note (1) below) with control circuit breaker. Note No. 1: Voltage of any line to ground cannot exceed 125 VAC. Example: EH-20-135S=20KW boiler for 120V/240V. 120V/208V Single Phase 3 wire. ELECTRICAL • • Single branch circuit for 3 wire 120/208 V WYE, 120/240 Volt a.c. single phase, 60 Hz or for 4 wire 120/208V WYE three phase, 60Hz a.c. See note (1) above. Circulator relay 12 AMP Max, 120V a.c. • • Heating elements: Low-density replaceable. Copper sheathed and silver brazed base. Relays: Heavy-duty contactors, 48 AMP U.L. rating TYPICAL PIPING DIAGRAM FOR USE WITH TWO-WAY ZONE VALVES NOTES: 1. Optional blocking gate valve and hose end valve used (with drain valve) for fast fill and purge of system. IMPORTANT Close bypass line valve (if used) during purging. 2. Circulator should not be installed at lowest point of piping. 3. There should be no elbows, tees, or change of pipe size for at least 5 diameters of pipe size (see table below) upstream and downstream of flow switch. Boiler Model Flow Switch McDonnell & Miller No. Pipe Size EH-40 FS8W 1 1⁄4 IN. EH-8 Thru EH-32 FS4-3T3-1 1 IN. Minimum Length of Straight Pipe Upstream and Down-Stream of Flow Switch 8 1⁄2 IN. 6 1⁄2 IN. © Slant/Fin Corp. 2003. Printed in U.S.A. 1203. Publication EH-10 SLANT/FIN CORPORATION., Greenvale, N.Y. 11548 • www.slantfin.com Phone: (516) 484-2600 • Fax: (516) 484-5921 In Canada: Slant/Fin LTD/LTEE, Mississauga, Ontario • www.slantfin.ca
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