MZ 25C Important Information ...... 2 This product must be installed and serviced by a professional service The Monitor MZ ......3 technician, qualified in hydronic heating system installation and Technical Specifications ....4 maintenance. Improper installation and/or operation could create carbon Getting Started .......
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THE MONITOR MZ 25C Flue gas Extremely Combustion air intake via outlet.
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INTRODUCTION T E C H N I C A L S P E C I F I C A T I O N S MODEL MZ25C MZ40C MZ25S BTU input 94,500 71,000 / 142,000 94,500 (Shown Above) 92 to 97% 92 to 97% 92 to 97% AFUE Efficiency...
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INTRODUCTION - INSTALLATION AND TECHNICAL GETTING STATED auto fill valve if one is required or as the appropriate place to connect additional expansion tank, if needed. If not needed, cap RECEIVING: it. If you are going to use it, check to make sure that the opening Before the contractor accepts the MZ, care should be taken to in the male port has been drilled out.
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Because of its very high efficiency and very quick response no more than 120°. If the DHW aquastat is set above 145º F time, the MZ series is especially well suited for high-volume the fixed, manual-reset high-Limit supply-water thermostat DHW water production through the use of water storage tanks on the MZ may trip, causing nuisance callbacks.
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INSTALLATION AND TECHNICAL CONDENSATE: For steady water temperatures, the DHW water flow rate through the MZ25S must be high enough to keep the MZ’s Condensate removal can be accomplished by letting it drain burner on. If the user complains of DHW temperature swings, into the building’s normal drain or septic system.
INSTALLATION AND TECHNICAL eliminated. Oxygen and minerals in the water coming in to in an easily accessible place. The pipe supplying gas to the replace the water leaking out will damage the MZ. heating system must not cause a pressure loss great enough to decrease inlet gas pressure below the specified minimum CORROSION: gas pressure values.
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INSTALLATION AND TECHNICAL Important note about altitude: Since atmosphere thins creasing the amount of air. The MZ can be used up to 6,000 as altitude increases, there is less oxygen available to feet dependinc on vent length of run, aAbove 6,000 feet, support combustion at high altitude.
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2. Vertical Concentric: #2203 Vertical 1-Meter Stick ......13 For vertical concentric venting, Monitor Products, Inc. kit #2202 Vertical 1/2 Meter Stick ...... 13 number #9505 is required. (see fig. 2).
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INSTALLATION AND TECHNICAL After the area of termination has been selected use part number Fig. 5 9530A 3" Coupling CPVC #2206 and install vent termination utilizing support bracket 3" Elbow, CPVC included with kit. (See Fig. 3) 2.5" X 9 Long pipe CPVC 4’...
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INSTALLATION AND TECHNICAL PVC dia. 110 Dia. 4.33” The MZ can be supplied with a standard length flue, which can be used to run through a wall up to three feet thick directly behind the MZ. For greater lengths, Positioning slot Polypropylene dia.
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INSTALLATION AND TECHNICAL 9530A KIT FOR 3” 3” CPVC Elbow PVC VENTING 2.5” x CPVC Bushing Top of heating 3" X 4’ 3" X 3" CPVC TO system to Top PVC Coupling. CPVC Stick of Elbow, Remainder of Flue 11.75”, can be 3"...
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INSTALLATION AND TECHNICAL VERTICAL CONCENTRIC VENT These parts are needed to fit the vertical-vent 9505 Vertical system to the MZ. The internal flue pipe that ships Flue Adapter with the MZ is sized for the horizontal flue system and side-by-side two-pipe vent systems. They are used with the MZ more often than the vertical, This Pipe concentric vent system is.
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INSTALLATION AND TECHNICAL Exterior Wall Part 9503, Horizontal 90 Degree Elbow Part 9501, Horizontal Flue Termination Kit, Cut to Length Part 9504, Horizontal Products of Combustion Out Terminal Must Exit at the Depth Above snow Line I-meter Stick, Cut to Combination Air In Mandated by Local Codes of National Fuel Gas Code.
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INSTALLATION AND TECHNICAL To call for burner and pump at the same time, leave the jumper Flushing the gas will also have the effect of removing any oxide in T2, T3 and the heating system control in T1, T2. particles from the pipes produced during brazing. •...
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INSTALLATION AND TECHNICAL - ACCESSORIES The pump in the MZ40C is generally not capable of pumping with water-glycol mixes, it is possible for that manual reset normal heating zones outside the heating system. Such switch to trip before the call for heat has been satisfied. In applications normally will require additional series pumping or order to check for this possibility, the system should be run a primary-secondary layout.
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#1 on BS tank Orange to Brown Grey to Blue Heating System Ground Monitor’s domestic hot water kit (part # Green Ground terminal 9523) allows for the zoning and control of on tank (connect to ground any indirect tank, or any two or more...
MAINTENANCE - TROUBLESHOOTING V . M A I N T E N A N C E MAINTENANCE CONSIDERATIONS MAINTENANCE PROCEDURES The MZ is an extraordinarily durable and well-designed heat (Approximate time, 15 minutes.) source. It is built in the same manner as a fine boat or airplane. 1) Disconnect plastic tube at top of fan.
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TROUBLESHOOTING Is there flame failure? Here is the sequence of events that occur during normal operation: Likely flame failure causes: bad gas-air mixture (too little or 1. Power on to the unit too much gas), no spark, reverse polarity or poor ground. 2.
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TROUBLESHOOTING PROBLEM POSSIBLE CAUSE REMEDY Unit fires Correct wiring. Isolate zone controller from unit with relay, Intermittent signal to T3-2 or T2-1. normally and or change end switch location to 0 voltage dry contacts. Possible loose connection / poor shuts off Check wiring connections.
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APPENDIX A I . A P P E N D I X MZ INSTALLATION & MAINTENANCE...
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APPENDIX A MZ Heating System MZ Mod Control System In Sensor System Out Sensor Outdoor Sensor Radiant Heat www.monitorproducts.com...
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APPENDIX A MZ Heating System Zone 1 Zone 2 Air Vent (TYP) Zone Valve (TYP) Zone 3 Relief Valve System Supply (recirc when used) Expansion Tank & Air Separator (May be Required due to System Capacity) Tank Domestic System Return Hot Water Top view of BS Tank MZ INSTALLATION &...
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APPENDIX A Heating System Supply 3 Way Valve Zone 2 Storage Tank Heat Exchanger MZ Heating for Pool Heat or System Snow Melt Radiant Heat or other Low Temp Heat Chiller BS Tank TWO-TEMP SYSTEM WITH SINGLE HIGH-TEMP CALL. FOR USE WHEN TOTAL, DESIGN SPACE-HEAT LOAD IS GREATER THAN 80% OF SYSTEM OUTPUT. MZ systens used in high-temp, low-temp system with high-temp being “piggybacked”...
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APPENDIX A A 3-way valve, part of MPI’s DHW kit, part# 9523. When the aquastat in the DHW storage tank (B) calls for heat, the 3-way valve in the MZ will switch to the DHW position and the MZ will fire and run until the aquastat is satisfied. When the DHW call is finished the 3-way valve moves to the space-heat position. B DHW storage tank.
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APPENDIX A WIRING DIAGRAM FOR FULL OUTPUT CONTROL OF MZ2040C FOR PRIORITY CALL WHEN ADJUSTABLE-LIMIT SWITCH IS AT LOW-TEMP SETTING. gray ELAY gray gray gray ALVE ALVE ROVING WITCH ATER WITCH ELAY ELAY ELAY ALVE gray ELAY gray gray gray RANSFORMER Summer Winter...
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APPENDIX B A P P E N D I X PARTS: CONTROL PANEL MZ25C/S The MZ is an exceptionally well-built device. All of the components selected for the MZ are the most reliable available. No matter how well built and reliable a product is, parts are inevitably needed.
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APPENDIX B MZ25C MZ INSTALLATION & MAINTENANCE...
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APPENDIX B ITEM PART ITEM PART NUMBER DESCRIPTION NUMBER DESCRIPTION 9065 DRAIN VALVE WITH CAP 9533 ELBOW D.80 45º 9056 STRAINER 9003 FLAME PROBE 9078 RETURN-WATER MANIFOLD GASKET 9022 BURNER HEAD 9056 NEOPRENE STICKING SEALING 9004 IGNITOR FLANGE 36 For Reference Only AIR REDUCER D.29 (GN) 9093 RETURN/SUPPLY MANIFOLD, MZC 36 Part of LP Kit 9085...
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APPENDIX B MZ25S MZ INSTALLATION & MAINTENANCE...
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APPENDIX B ITEM PART ITEM PART NUMBER DESCRIPTION NUMBER DESCRIPTION For Reference Only SPRING FOR SYSTEM COVER For Reference Only NITRILE O-RING For Reference Only EXTENSIBLE SEALING; 9019 FAN (OR #W00. 17073) EXT40-INTERN 14 For Reference Only EXTENSIBLE SEALING EXT. .40 BOTTOM PANEL, MZ25S 40 INTERN 25 9065...
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APPENDIX B MZ25S MZ INSTALLATION & MAINTENANCE...
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APPENDIX B ITEM PART ITEM PART NUMBER DESCRIPTION NUMBER DESCRIPTION For Reference Only BURNER GAS PIPE For Reference Only CIRCULATING PUMP 15/42F 115V For Reference Only FIXING BRACKET FOR IONIZATION For Reference Only FIXING BRACKET/TURBINE PROBE For Reference Only VERSILIC 6X10 LG 300 MM 9005 GAS VALVE For Reference Only JOINT BRIDGE CIRCULATOR UPS...
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APPENDIX B MZ40C MZ INSTALLATION & MAINTENANCE...
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APPENDIX B ITEM PART ITEM PART NUMBER DESCRIPTION NUMBER DESCRIPTION 9091 FILTER FILL AND DRAIN A55Y 9093 RETURNS/SUPPLY MANIFOLD, MZC 9065 DRAIN VALVE WITH CAP M1/2-,3/4" For Reference Only TINNED GAS PIPE NOZ For Reference Only MESSING REDUCER CB 1 1/2 - For Reference Only MESSING M/F REDUCTION FEMALE 1/2...
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APPENDIX B ITEM PART NUMBER DESCRIPTION MZ40C For Reference Only FRONT COVER & STICKER 9055 ON/OFF SWITCH 9054 SUMMER/WINTER SWITCH 9051F THERMOSTAT GAUGE (FAHRENHEIT) 9053 KNOB 9052 ADJUSTABLE LIMIT 40 For Reference Only ZINC DISC D 4XX10X0.8 For Reference Only WIRE ROPE CLAMP For Reference Only FOLDED NECK FOR WIRES...
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NOTES ONITOR RODUCTS P.O. Box 3408 • Princeton, NJ 08543 www.monitorproducts.com PHONE (732) 329-0900 • FAX (732) 329-0904 MPI offers technical support to qualified licensed heating contractors during normal business hours. (Monday-Friday 8:30 A.M. to 4:30 P.M. Eastern Time) To help us serve you properly our technicians will require the following information: Fuel Type (Natural/Propane) Gas pressure in In.
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MPI of in-warranty coverage. An item to be replaced must be made available in exchange for the MPI corrosion inhibitor must be used in every MZ series heating replacement. system. Failure to use this inhibitor will void this warranty.
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