Amtrol HM-41Z Water Heater User Manual
Contents
1. BOILERMATE HEATING BOILERMATE HEATING BOILERMATE HEATING CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR Millivolt Self Generating PRIORITY POWER BURNER PRIORITY PRIORITY E LL LLL 6 554 BOILERMATE HEATING BOILERMATE HEATING BOILERMATE HEATING CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR CIRCULATOR Other Applications Multi Zone Control Using Post Purge Multi Zone Control No Post Purge 4 Wire Zone Valve N f N POWER BURNER PUMP PRIORITY m c 2 z m a v c 0 POWER BURNER PRIORITY PRIORITY ORANGE ORANGE 1 BLACK VIOLET 1 a VIOLET 2 5 BOILERMATE CIRCULATOR 24 OR 120 We MOTOR Pa ES OO OO T TRANSFORMER ZONE VALVE DHW ZONE D 8 5 J BOILERMATE CIRCULATOR OR ZONE VALVE E E t VO BOILER 6 Ener G NET Control Setup amp Adjustment Mode Indicators Ener G NET features two distinct pr2. INSTALLATION amp OPERATION INSTRUCTIONS HYDROMAX INDIRECT FIRED WATER HEATERS AMTROL 1400 Division Road West Warwick RI 02893 A T 401 884 6300 A F 401 885 2567 A www amtrol com PLEASE READ THE FOLLOWING INSTRUCTIONS CAREFULLY INSTALLER LEAVE THIS MANUAL WITH THE OWNER AMTROL HYDROMAX AMTROL HYDROMAX Models Covered 412 amp HM 80Z Mechanical Control HM 41L amp HM 80L Ener G NET Digital Control IMPORTANT GENERAL SAFETY INFORMATION ADDITIONAL SPECIFIC SAFETY ALERTS APPEAR IN THE FOLLOWING INSTRUCTIONS A WARNING DO NOT LIFT OR CARRY WATER HEATER BY THE TOP COVER WATER HEATER DAMAGE OR PERSONAL INJURY MAY OCCUR IF THE COVER BECOMES DETACHED READ CAREFULLY THE PRODUCT INSTALLATION OPERATING AND MAINTENANCE MANUAL FAILURE A WARNING TO FOLLOW THE INSTRUCTIONS AND WARNINGS IN THE MANUAL MAY RESULT IN SERIOUS OR FATAL INJURY AND OR PROPERTY DAMAGE AND WILL VOID THE PRODUCT WARRANTY THIS PRODUCT MUST BE INSTALLED BY A QUALIFIED PROFESSIONAL FOLLOW ALL APPLICABLE LOCAL AND STATE CODES AND REGULATIONS IN THE ABSENCE OF SUCH CODES FOLLOW THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND NATIONAL ELECTRIC CODE AS APPLICABLE THIS 15 THE SAFETY ALERT SYMBOL IT IS USED TO ALERT YOU TO POTENTIAL PERSONAL INJURY AND OTHER HAZARDS OBEY ALL SAFETY MESSAGES THAT FOLLOW THIS SYMBOL TO REDUCE THE RISK OF PERSONAL INJURY AS WELL AS PROPERTY DAMAGE CAUTION The heat tr
3. Separate circulator The recommended way to provide adequate flow through the water heater heat exchanger is to use a separate dedicated circulator This option may be used even though the heating system utilizes zone valves 2 Zone valve f a zone valve is to be used a flow rate of to 5 gpm with all zones in use is required A full port zone valve should be used All installations require a low water cut off or automatic fill valve on your boiler system to reduce the risk of boiler water loss Steam boiler installations require a low water cut off which is also required by most codes Installation of a vacuum breaker is required to prevent damage to the water heater when drained There must be no valves installed between the vacuum breaker and water heater Retaining Screws 2 Head Loss Feet 3 Required Components And Accessories Checklist THERMAL CIRCULATOR SHUTOFF MODEL PERFORMANCE ZONE VALVE VALVES RELIEF VALVE EXPANSION TANK HM 41 5 GPM Q 7 FT 3 4 Full Port Included 2 0 Gallon HM 80 5 GPM Q 7 3 4 Full Port Included 4 4 Gallon CAUTION steel hydropneumatic tank is in place replace it with a properly sized diaphragm expansion tank Otherwise significant heat transfer problems can occur by causing air to be trapped in the heat exchanger If the boiler system has an existing expansion tank and the boiler temperatures are being changed resize the existing diaphragm expa
4. installed in an area where leakage of the tank or connections can result in damage to the area adjacent to the appliance or to lower floors of the structure When such locations cannot be avoided a suitable drain pan adequately drained and kept clear must be installed under the appliance CAUTION Determine whether your water is corrosive or acidic and that there are no suspended solids toxic or other substances or abnormally high chlorine levels in the water that could damage or affect the water heater or the rest of your plumbing system USE GLYCOL ONLY WITH A WARNING DOUBLE WALLED HEAT EXCHANGER MODELS Glycol is a poisonous substance To avoid seepage or leakage of glycol to surfaces where humans or animals can ingest it use glycol only in double walled units so that any leaks will most likely be released to the atmosphere However a leak to a surface area may still occur so any use of glycol must be monitored closely and humans and animals should be protected from contact with the unit A WARNING Do not connect the water heater domestic supply with baseboard or other space heating units or elements Any contaminants in the baseboard units will contaminate the potable water in the water heater and also adversely affect its performance Wiring Options Select either a Non Priority or Priority System Two options are available when wiring the controls of the water heater in the space heating system boile
5. A WARNING thermal expansion tank is required with the water heater and should be installed as set forth in the product installation manual Contact your water supplier or local plumbing inspector for additional information Prevent pressure build up in any existing internal A DANGER tankless coil Do not plug incoming or outgoing tappings in the internal tankless coil plate Leave the coil in the boiler and leave system connections open to prevent pressure build up Failure to use the correct replacement parts may make your product unsafe Electrocution hazard The water heater must be electrically grounded Electrical supply must come from the boiler side of boiler s emergency shut off switch in order to prevent unsafe boiler operation A WARNING Chlorine Aggressive Water The water quality can significantly influence the life of this Product You should test for corrosive elements acidity total solids and other relevant contaminants including chlorine and treat your water appropriately to insure satisfactory performance and prevent premature failure gt gt 2 Q m D Note Inspect for shipping damage and notify freight carrier or store where purchased immediately if damage is present To avoid risk of personal injury and property damage if the product appears to be malfunctioning or shows signs of corrosion call a qualified professional immediately Current copies of the Product Manual can be obtained at the pla
6. ROMAX aquastat is not used 1 Unscrew and remove copper sensor bulb from sensor well 2 Insert Universal Sensor to bottom of sensor well 3 Plug Universal Sensor into Extension cable 4 Connect wire leads to DHW input terminals on boiler control END SWITCH AQUASTAT SENSOR BULB Other Applications Multi Zone Control Boiler Control Input AQUASTAT AQUASTAT ooo DHW ZONE DHW ZONE UNIVERSAL SENSOR IN SENSOR WELL TO BOILER HYDROMAX HYDROMAX CIRCULATOR CIRCULATOR K ZONE VALVE OR ZONE VALVE BOILER HYDROMAX 8 Startup Procedure 1 PURGE HEAT EXCHANGER The heat exchanger should be free of large air pockets to allow the circulator to operate properly Using the diagram below as a guide isolate the boiler return line and flush the loop until large air pockets are purged After this the air elimination equipment will collect smaller air bubbles 2 FILL TANK Open the hot water fixture furthest from the heater Open the cold water supply and allow the water to run until air stops emerging Air pockets may appear at any hot water fixture This is considered normal and will clear as hot water is used 3 START HEATER Turn power on to the unit Digital Control models come pre set to 120 F for safety Mechanical controls should have the knob rotated to the 120 F mark The circul
7. ansfer medium must be water or other nontoxic fluid having a toxicity rating or class of 1 as listed in Clinical Toxicology of Commercial Products 5th edition The pressure of the heat transfer medium must be limited to 30 PSIG by an approved safety or relief valve 9040 694 10 11 1 Table Of Contents Pre Installation 2 Required Components and Accessories Checklist 3 HYDROMAX Plumbing 4 Ener G NET Wiring 5 6 Ener G NET Setup 4 7 T Mechanical Aquastat 8 8 Startup Procedure 9 9 Troubleshooting e 9 10 General Safety 10 11 Replacement Parts sss 11 2 Pre Installation Checklist IMPORTANT STEPS AND DECISIONS REQUIRED BEFORE INSTALLATION Q THIS PRODUCT MUST BE INSTALLED AND MAINTAINED BY ALICENSED PROFESSIONAL PLUMBER ELECTRICIAN AS APPLICABLE IN ADDITION TO THE INSTRUCTIONS IN THIS MANUAL FOLLOW ALL APPLICABLE LOCAL AND STATE CODES INCLUDING MA CMR 248 OR IN THE ABSENCE OF SUCH CODES THE CURRENT EDITIONS OF THE NATIONAL PLUMBING CODE AND THE NATIONAL ELECTRIC CODE DRIP PAN AND DRAIN This appliance should not be
8. ator or zone valve should operate and the boiler should start 4 CHECK OPERATION The water heater will begin to heat Depending upon the size of the water heater output of the boiler and the space heating load the unit should typically reach set temperature within 15 to 60 minutes If heating does not occur consult the troubleshooting section in this manual Note Large heaters coupled with small boilers may exceed this time period upon initial startup 5 SET TEMPERATURE The control should be set to the minimum temperature consistent with the users needs This maximizes efficiency and reduces scald potential 6 The water heater and system should be periodically checked by a licensed professional at least annually and more often as system ages 9 Troubleshooting PROBLEM POSSIBLE CAUSES SOLUTION 1 No power to unit 1 Check circuit breaker boiler emergency switch and boiler reset switch 2 Circulator air bound 2 Purge air Ensure circulator is on Boiler Supply Check air vents No hot water 3 Faulty circulator or zone valve 3 Check circulator and zone valve Repair or replace if necessary 4 Faulty control 4 Check continuity Switching circuits should close If not replace control 5 Boiler inoperable 5 Check boiler system Boiler must operate to generate hot water 1 Demand exceeds capacity 1 Check sizing based on household size and boiler output 2 Temperature too low 2 Increase temperature setpoint 3 Boiler
9. ce of purchase Use proper safety equipment when installing DANGER EXPLOSION HAZARD The pressure of the heat transfer medium must be limited to a maximum of 30 psig by an approved safety or relief valve on your boiler The water heater pressure must be limited to 150 psig maximum by the installation of a temperature and pressure relief valve included The relief tube must be plumbed to a suitable drain per code No reducing coupling or other restriction may be placed in this line This Product like most Products under pressure A WARNING may over time corrode weaken and burst or explode causing serious or fatal injury leaking or flooding and or property damage To minimize risk a licensed professional must install and periodically inspect and service the Product A drip pan connected to an adequate drain must be installed if leaking or flooding could cause property damage Do not locate in an area where leaking could cause property damage to the area adjacent to the appliance or to lower floors of the structure A WARNING EXPLOSION OR RUPTURE HAZARD A relief valve must be installed to prevent pressure in excess of local code requirement or maximum working pressure designated in the Product Manual whichever is less Do not expose Product to freezing temperatures or temperatures in excess of the maximum rated operating temperature If not installed by the boiler manufacturer install low water cut off or pressure r
10. educing valve on your boiler so that leaking will not result in a dry boiler which if the boiler continues to fire will cause an explosion hazard This unit must be installed as separate heating zone Do not connect this unit to an existing heating zone or feed boiler water directly through the coil as dangerous over heating will result Do not drain this appliance before shutting off the CAUTION supply valve and opening the relief valve or another downstream fixture as it will damage this unit A vacuum breaker should be installed to avoid damaging the liner Damage to the unit and leakage can occur if a vacuum breaker is not installed A WARNING USE GLYCOL ONLY WITH DOUBLE WALLED HEAT EXCHANGER MODELS Avoid risk of ingesting a toxic glycol fluid The heat transfer medium should be water If glycol must be used it should only be used with double walled heat exchangers and closely monitored for leakage CALIFORNIA PROPOSITION 65 WARNING This A WARNING product contains a chemical known by the State of California to cause cancer and to cause birth defects or other reproductive harm California Installer Contractor California law requires that this notice be given to consumer end user of this product For more information www amtrol com prop65 htm CAUTION As in all plumbing products and water storage vessels bacteria can grow in this Product especially during times of non use Consult your local pl
11. eplace relief valve Discolored water 1 Poor water quality 1 Have water tested for contaminants at faucet 2 Sediment or suspended particles 2 Install sediment filter purge unit more often to avoid future problems 1 Improper or loose wiring 1 Check connections against wiring diagrams in this manual 2 Boiler high limit has been reached 2 Boiler will periodically cycle on and off during operation 3 Post Purge POS set too high 3 Post Purge shuts the boiler off prior to reaching domestic setpoint If set too 4 Problem with boiler system high the boiler may not have enough energy to raise the water temperature to setpoint Reduce POS or set to 0 if the problem persists 5 Have boiler diagnosed for proper operation Boiler will not operate when calling for hot water 10 General Safety Information SCALDING HAZARD If the water temperature is over 120 F household members can suffer serious or fatal scalding and painful and permanent injury The Consumer Products Safety Commission recommends initial setting of 120 F but advised that a slower response time of infants aged disabled and other persons increases the scalding hazard and may require lower settings Always check the water temperature before use including washing bathing or showering Temperature limiting valves are available from your plumbing supplier A check valve must be installed in the boiler return line to prevent gravity f
12. ion in this manual EXPLOSION HAZARD Do not install to A DANGER a high pressure steam boiler greater than 15 psig An explosion could occur 4 Install the blowdown tube on the T amp P relief valve outlet Plumb to within 6 inches above a floor drain or as directed by plumbing code Clearance From Combustible Surfaces Recommended Clearance for Servicing LEFT SIDE 12 HEAD ROOM RIGHT SIDE BLOWDOWN TUBE WIRING AND AQUASTAT ON FRONT CAP HALF BOILER SUPPLY Hot Water Supply Expansion Tank TEMPERATURE and Air Purger SENSOR WELL BOILER SUPPLY OO COLD WATER __ HOT WATER ty Weighted Flow Check x Shutoff Valve 8 Drain or Purge Circulator Relief Valve Blowdown Tube BOILER RETURN TOP VIEW FROM FRONT Hot Water Supply ty Weighted Flow Check DEH Shutoff valve 8 Drain or Purge Circulator Relief Valve REAR VIEW FOR CLARITY 5 Ener G NET Wiring Ener G NET incorporates all of the temperature sensing and control necessary for HYDROMAX operation Built in switching relays may be wired to operate the boiler control and circulator pump or zone valve The diagram below illustrates these internal switching functions Examples of common wiring scenarios are provided on the following page Post Purge function Front Panel Normally Open C
13. lacks output for simultaneous heat amp hot water 3 Set up for priority If problem persists add storage or increase tank size 4 Fouled heat exchanger 4 Check Boiler Supply Boiler Return during cold startup If difference is less Insufficient hot water than 20 F clean heat exchanger as outlined below Install water treatment equipment to prevent recurrence 5 Insufficient heat exchanger flow 5 Check for undersized or faulty circulator stuck or undersized zone valve Ensure all shutoff valves are open Check for stuck flow check valve Purge boiler loop to remove air 1 Improper plumbing 1 If Boiler Return is plumbed to the suction side of a heating circulator over heating will occur when the home s heat is on Fix plumbing 2 Temperature set too high 2 Reduce temperature setting 3 Temperature sensor not fully inserted 3 Re insert temperature sensor 4 Stuck zone valve 4 Repair or replace 5 Flow check valve stuck open 5 Clean repair or replace Water too hot 1 Thermal expansion tank undersized or missing 1 Install the properly sized thermal expansion tank M 2 Thermal expansion tank set improperly 2 Ensure precharge air pressure matches static water pressure Relief valve dripping City pressure too high 3 Install a Pressure Reducing Valve PRV if city pressure is over 80psi or opening 4 System over temperature 4 Determine cause of over temperature condition and correct problem 5 Faulty relief valve 5 R
14. lose on call for hot water Control Normally Open Screws 4 Close on call for hot water Wiring Cover Conduit Holes 3 Open on call for hot water Priority function Normally Closed VIOLET VIOLET Ground Screw Constant 24VAC or 120VAC Power In After wiring is complete insert the white temperature sensor thermistor plug into the receptacle at the base of the digital control Select the plug marked CIRCULATOR or ZONE VALVE based on the application Zone valves can be slow actuating Therefore the zone valve sensor contains a built in temperature offset to account for the time it takes the zone valve to fully close This results in potable water temperature that is representative of the digital control temperature set point This is why it is important to install the correct sensor into the digital control See Page 2 for information regarding the selection of a circulator or zone valve Temperature Sensor Plug Water NOTE This sensor should not be the primary means of water detection US PATENT NO 7 671 754 and other patents pending NOTE Line voltage and safety circuit wiring which is external to the water heater jacket when all panels are in place and which is part of the appliance shall be protected by metal conduit metal clad cable or raceways Power Limited Circuit Cable needed not be provided with the protection specified above if it is securely fastened to the appliance jacket and follows the contour
15. low through the heat exchanger This can cause overheating and result in serious or fatal scalding SCALDING HAZARD If the thermostat is not working properly or if this product is not installed in accordance with the manual water temperature can reach excessive levels that may cause serious or fatal scalding After installation and any servicing of the unit verify that the thermostat is working and firmly inserted in the thermostat well by following the thermostat testing instructions in the manual A WARNING In limited circumstances space heating can be lost in A WARNING the home with unit utilizing priority mode Any demand for space heating is postponed until the water heater has reached its set temperature This delay in supplying the space heating zones is usually not noticed by the inhabitants of the living spaces However in the event of certain malfunctions such as circulator or thermostat failure space heating could be delayed indefinitely If undetected and uncorrected freezing damage to piping could result A CAUTION If a steel hydropneumatic tank is in place replace it with a properly sized diaphragm expansion tank Otherwise significant heat transfer problems can occur by causing air to be trapped in the heat exchanger If the boiler system has a diaphragm expansion tank and the boiler temperatures are being changed resize the expansion tank If installing on city water supply a properly sized
16. mperature drop before call for heat Default is 10 F 5 10 Post Purge POS Early boiler shutoff prior to hot water setpoint Circulator runs until setpoint Default is O F Priority Temporarily cancels space heat to maxmize available energy for hot water Default is Capacity CAP Water heater capacity select appropriate size for proper operation Default is 41 Gallons 26 41 60 80 120 BTU Transfer Real time BTU transfer estimate 1000 BTU Hr increments Diagnostic readout only 0 199MBH Hr Available in Standard Mode only Available only when Differential setting is 10 Diagnostic Error Codes display a visual indicator and sound an alarm if a fault is detected Codes clear automatically when corrected or can be reset by interrupting power to the control for 5 seconds To silence an alarm depress the on the keypad Error Code Description Potential Causes Temp Sensor Temperature sensor thermistor fault ensor Error boiler plumbing Overheating Domestic hot water temperature has exceeded maximum setpoint Zone valve stuck open Leak in sensor well Faulty equipment Slow Heating Unit has taken over 60 minutes to reach hot water setpoint or cannot reach setpoint Fouled heat exchanger No fuel Water Alarm Standing water detected Standing water See Troubleshooting section for additional information Operating Indicators are used to display operational and functional status Water sensor
17. nsion tank A Use care when using a torch near the top cover and heat exchanger plate It is recommended CAUTION lest the front half be removed prior to soldering to avoid potential damage HYDROMAX Components 2 Piece Cover Removal and Installation Boiler Return Jl a Cold Water Removing Front Half Depress both tab buttons to detach one side at a time Heat Exchanger Pressure Loss Installing Front Half Align bottom groove of cover onto metal retaining ring Beginning with one side align pin and push until both tabs lock Repeat for other side ensuring all tabs are fully engaged Removing Entire Cover Remove front half loosen both retaining screws and remove rear half 2 4 6 Flow Gallons Per Minute Tab Buttons 4 eer a eed 4 HYDROMAX Plumbing DOMESTIC WATER PIPING 1 Connect the cold water supply to the pipe labeled COLD WATER pe not drill puncture or otherwise A CAUTION penetrate the steel outer tank shell Do not screw pipe hangers or other hardware into the exterior of the tank BOILER PIPING 1 Plumb the circulator or zone valve on the BOILER SUPPLY line 2 Connect the HOT WATER piping to the domestic hot water system 3 When all domestic water piping is complete open the cold water supply and allow some water to enter the tank Look and listen for signs of leaks and repair as necessary before continuing 2 Pi
18. of the appliance jacket Thermoelectric wiring shall be exempt from this provision NOTE Strain relief shall be provided for all conductors leaving an enclosure For low voltage wiring strain relief at the point of exit from an enclosure is not necessary if by wire location or support protection is provided against accidental strain NOTE For models equipped with a water sensor the water sensor should be placed flat on the floor in a low traffic area On a regular basis verify that the water sensor is functioning properly by placing the orange puck in a water puddle or insert a coin between the two electrodes and listen for audible alarm Ener G NET Wiring Common wiring diagrams are shown below Select the appropriate diagram for the application Diagrams are popular examples only If your application is not shown contact Amtrol Technical Support at 401 535 1216 NOTE Ensure the Ener G NET installation is within the following application and operating parameters Ambient temperature from 38 to 125 F Relative humidity ranging from 2096 to 9096 non condensing Boiler load rating up to 15A resistive 1 4hp inductive 120VAC Circulator load rating up to 15A 1 4hp inductive 120VAC Space heating load rating up to 8A 120VAC Oil Burner Controls ZR Input Terminal High Limit B Terminal Triple Aquastat 4 i o POWER BURNER PRIORITY PUMP PRIORITY PE PRIORITY o 6 5
19. ogramming areas User Modes and User Installer Settings User Modes consist of three end user functional Modes modes while Installer Settings are primarily accessed upon initial setup LED to specify critical operating parameters Ener G NET factory defaults Display allow traditional operation suitable for most homes To optimize the control setup reference the tables below Installer Settings Temperature settings above 120 F can create a A WARNING hazard User Modes are used to select from three distinct operational modes To select press the green MODE button and press again to cycle through the three available modes A green dot illuminates to display the current mode User Mode Code Description Standard Traditional operation within preset temperature differential using a low and high limit Efficiency EFF On Demand sensing reduces fuel consumption by limiting boiler operation during idle periods Vacation Reduced temperature setting minimizes boiler operation during anticipaated periods of non use Installer Settings are used to adjust functional operating parameters To adjust press and hold the SET button until the Temperature setting appears Cycle through settings by depressing the SET button and using the W and A buttons to change the settings Setting Code Description Range Temperature Domestic hot water setpoint Default is 120 F 90 150 Differential d F Domestic hot water te
20. pe the BOILER RETURN connection to the boiler return line sure the return line is NOT CAUTION plumbed to the suction side of any Note If installing on a city supply a properly sized thermal expansion tank is required and should be installed in accordance with the product installation manual Note If a water heater is installed in a closed water supply system such as one having a back flow preventer in the cold water supply means shall be provided to control thermal expansion Contact heating circulators This may require moving the heating circulator off the boiler tapping on packaged boilers Failure to do so will result in overheating and tank damage when the heating system is in operation the water supplier or local plumbing inspector on how to control this situation Note If an external electrical source is utilized the appliance when installed must be electrically grounded in accordance with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA 70 Note The thermostat is adjusted to 120 F when shipped from the factory 3 Install a weighted flow check on the boiler return line This is not necessary on systems utilizing a zone valve to control the water heater temperature 4 After completing the boiler piping slowly open the boiler fill valve and pressurize the water heater loop Check for leaks and repair as necessary Proceed to the appropriate wiring sect
21. r and distribution elements 1 Non Priority System The controls of the water heater must be wired as a separate heating zone with a standard zone valve or a separate circulator dedicated to the water heater zone NOTICE In this non priority option the water heater will be supplied just as another zone This means that if all space heating zones call for hot boiler water at the same time the water heater may not be supplied with enough hot boiler water to recover adequately The delivery of domestic hot water will be diminished In many but not all cases this is not a problem because the routine oversizing of boiler output is adequate for both loads 2 Priority System Under this wiring option the water heater will be supplied before space heating In limited circumstances space A WARNING heating can be lost in the home in this priority mode Any demand for space heating is postponed until the water heater has reached its set temperature This delay in supplying the space heating zones is usually not noticed by the inhabitants of the living spaces However in the event of certain malfunctions such as circulator or thermostat failure space heating could be delayed indefinitely If undetected and uncorrected freezing damage to piping could result Select Circulator versus Zone Valve The flow of hot boiler water to the water heater can be controlled with either a motorized zone valve or a circulator 1
22. temperature may be shown for 30 seconds by pressing the A button Indicator Code Description Startup Test Displayed briefly during intial powerup to test LED display segments Static numeric setpoint readout factory default shown indicates domestic hot water setpoint NNI LEE Alternating On and Setpoint is displayed during a heating cycle while the circulator pump contacts are closed ay 7 Mechanical Aquastat Wiring Diagrams Common wiring diagrams are shown below Select the appropriate diagram for the application Diagrams are popular examples only If your application is not shown contact Amtrol Technical Support at 401 535 1216 Boiler Controls Typical Oil Burner Non Priority Typical Gas Valves Non Priority 24 Thermostat Input Priority HONEYWELL HONEYWELL R4222D 1013 HONEYWELL R4222D 1013 OR EQUIVALENT R4222D 1013 OR EQUIVALENT DPDT RELAY OR EQUIVALENT DPDT RELAY DPDT RELAY AQUASTAT HYDROMAX M HYDROMAX CIRCULATOR CIRCULATOR WHEN NO ZR TERMINAL IS AVAILABLE GO TO THE SUPPLY SIDE OF THE HI LIMIT Universal Sensor Kit Installing Universal 10K Ohm Sensor Kit AGUASTAT HYDROMAX models with a mechanical aquastat include a universal temperature sensor kit allowing HYDROMAX to be used with any boiler control featuring a standard 10K DHW thermisor input 10 000 Ohms at 77 F When installed domestic water temperature is regulated by the boiler and the HYD
23. umbing professional regarding any steps you may wish to take to safely disinfect your home s plumbing system A WARNING EXPLOSION OR RUPTURE HAZARD A relief valve must be installed to prevent pressure in excess of local code requirement or maximum working pressure designated in the Product Manual whichever is less At least once every 3 years or if discharge is present a licensed contractor should inspect the temperature and pressure relief valve and replace if corrosion is evident or the valve does not function FAILURE TO INSPECT THIS VALVE AS DIRECTED COULD RESULT IN UNSAFE TEMPERATURE OR PRESSURE BUILD UP WHICH CAN RESULT IN PRODUCT FAILURE SERIOUS INJURY OR DEATH AND OR SEVERE PROPERTY DAMAGE AND VOID THE PRODUCT WARRANTY 10 11 REPLACEMENT PARTS Description o Temperature Sensor remiso echnical Tenperatrecontor e e moe moe Fs moa rR __ 11 AMTROL 1400 Division Road West Warwick RI 02893 A T 401 884 6300 A F 401 885 2567 A www amtrol com HYDROMAX Ener G NET AMTROL AMTROL logo Therm X Trol and EXTROL are registered trademarks of AMTROL Inc and affiliates in the U S and elsewhere All rights reserved 9040 694 10 11
Download Pdf Manuals
Related Search