background image

HYDROMAX

® 

INDIRECT-FIRED WATER HEATERS

INSTALLATION & OPERATION INSTRUCTIONS

Models HM-41 & HM-80

READ CAREFULLY THE PRODUCT 

INSTALLATION & OPERATION INSTRUCTIONS.   

FAILURE 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. 

 DO NOT LIFT OR CARRY WATER HEATER BY 

THE TOP COVER. WATER HEATER DAMAGE OR 

PERSONAL INJURY MAY OCCUR IF THE COVER BECOMES 

DETACHED.

The heat transfer 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.

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 viewed at www.amtrol.com.  Use proper safety equipment when installing. 

THIS IS 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.

Summary of Contents for HYDROMAX HM-41

Page 1: ...The heat transfer 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 trans...

Page 2: ...t 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 pr...

Page 3: ...etaining Screws 2 Heat Trap Boiler Supply Hot Water Outlet 15 10 5 0 0 2 4 6 8 Head Loss Feet Flow Gallons Per Minute HYDROMAX Components Single Wall Shown Two Piece Cover Removal and Installation Hea...

Page 4: ...rwise 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 Pipe...

Page 5: ...duit 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 of t...

Page 6: ...B C1 C2 L2 ORANGE ORANGE WHITE BLACK BLUE BLUE VIOLET VIOLET POWER BURNER PUMP PRIORITY HYDROMAX CIRCULATOR HEATING CIRCULATOR L1 B B2 Z W C1 C2 L2 Millivolt HYDROMAX CIRCULATOR HEATING CIRCULATOR ORA...

Page 7: ...capacity select appropriate size for proper operation Default is 41 Gallons 26 41 60 80 120 BTU Transfer Real time BTU transfer estimate in 1000 BTU Hr increments Diagnostic readout only 0 199MBH Hr A...

Page 8: ...l Gas Valves Non Priority AQUASTAT ZONE VALVE MOTOR 24VAC END SWITCH TRANSFORMER L1 L2 4 Wire AQUASTAT Boiler Control Input HYDROMAX CIRCULATOR OR ZONE VALVE DHW ZONE Boiler Controls Zone Valves Unive...

Page 9: ...faucet 1 Poor water quality 2 Sediment or suspended particles 1 Have water tested for contaminants 2 Install sediment filter purge unit more often to avoid future problems Boiler will not operate whe...

Page 10: ...obtained at the place of purchase Use proper safety equipment when installing EXPLOSION HAZARD The pressure of the heat transfer medium must be limited to a maximum of 30 psig by an approved safety or...

Page 11: ...ing Panel Mechanical Control 4 2704R498 2704R498 Ener G NET Digital Temperature Control 5 940R2 940R2 Temperature Sensor Thermistor 2704 259 2704 259 Mechanical Temperature Control 6 2704 093 2704 093...

Page 12: ...2015 AMTROL Inc Part 9040 694 11 15 1400 Division Road West Warwick RI 02893 USA T 800 426 8765 F 800 293 1519 www amtrol com...

Reviews: