PVI Industries MAXIM INTEGRATED WATER HEATING SYSTEM Troubleshooting Guide

PV500-50 08/14 INSTALLATION & MAINTENANCE MANUAL MAXIM 3 WATER HEATER MODELS (40, 50, 75, 90, 100) L 125 A-MXIF MODELS (50, 75, 90, 100) L (250,

MAXIM 3® WATER HEATER 10 PV500-50 08/14 5 GAS SUPPLY AND PIPING Verify that the type of gas specified on rating plate is supplied to the unit. This

MAXIM 3® WATER HEATER 11 PV500-50 08/14 5.6 Appliance Isolation during Gas Supply Piping Pressure Test 1. The appliance and its provided manual sh

MAXIM 3® WATER HEATER 12 PV500-50 08/14 6 COMBUSTION AND VENTILATION AIR Provisions for adequate combustion and ventilation air to the mechanical

MAXIM 3® WATER HEATER 13 PV500-50 08/14 Duct Fitting Equivalent Length Duct Pipe: 6” Duct 7” Duct 8” Duct 9” Duct 90º Elbow 8 feet 9 feet 10

MAXIM 3® WATER HEATER 14 PV500-50 08/14 7 VENTING 7.1 Venting the unit using Category I, III or IV Venting Materials The following instructions can

MAXIM 3® WATER HEATER 15 PV500-50 08/14 • The vent cap must terminate at least 3 feet (0.91 m) above any forced air inlet within 10 feet (3.05 m); 4

MAXIM 3® WATER HEATER 16 PV500-50 08/14 WARNING: Use only stainless steel venting listed by a nationally recognized testing laboratory for Category I

MAXIM 3® WATER HEATER 17 PV500-50 08/14 7.3.2 Vertical or Horizontal Vent Termination 1. The vent terminal must have a minimum clearance of 4 feet

MAXIM 3® WATER HEATER 18 PV500-50 08/14 8 OPERATING AND SAFETY CONTROLS WARNING: Turn off all electrical service to the appliance when accessing the

MAXIM 3® WATER HEATER 19 PV500-50 08/14 9 TEMPTRAC™ ELECTRONIC CONTROLLER PANEL 9.1 Principle Of Operation The water heater operates to satisfy the

MAXIM 3® WATER HEATER 2 PV500-50 08/14 TABLE OF CONTENTS 1. Safety Considerations 2. Product Description 3. Water Heater Installation 3.1 Check

MAXIM 3® WATER HEATER 20 PV500-50 08/14 9.5 To View The Setpoint • Push and release the SET key to see the set point value. • To return to normal

MAXIM 3® WATER HEATER 21 PV500-50 08/14 9.8 LED Display Alarm Messages Alarm messages are displayed in the upper LED readout and alternate with the

MAXIM 3® WATER HEATER 22 PV500-50 08/14 10 REMOTE CONNECTIONS – TERMINAL STRIP 10.1 Making BMS/BAS remote connections for analog and binary (on/off

MAXIM 3® WATER HEATER 23 PV500-50 08/14 11 SEQUENCE OF OPERATION 1. Incoming 120VAC a. Full time power to the Main Control Switch b. Full time po

MAXIM 3® WATER HEATER 24 PV500-50 08/14 8. Delay-On Relay - Once the Delay-On (Low Fire Hold) Relay has timed out, it energizes the Modulation Releas

MAXIM 3® WATER HEATER 25 PV500-50 08/14 12.3 Resources • Product Installation & Maintenance Manuals • Start-up Report with instructions • Loca

MAXIM 3® WATER HEATER 26 PV500-50 08/14 15. Turn unit on using the rocker switch on the front of the control enclosure assembly. When the burner fai

MAXIM 3® WATER HEATER 27 PV500-50 08/14 Gas Train Illustration for Models 40 through 50 (Optional components may not be shown) Gas Train

MAXIM 3® WATER HEATER 28 PV500-50 08/14 13 TROUBLESHOOTING GUIDE Problem Probable Cause Corrective Action Starting or Pre-purge Failure Power Supp

MAXIM 3® WATER HEATER 29 PV500-50 08/14 14 REPLACEMENT PARTS REPLACEMENT PARTS

MAXIM 3® WATER HEATER 3 PV500-50 08/14 9. TEMPTRAC Electronic Controller Panel 9.1 Principal of Operation 9.2 Upper LED Readout 9.3 Lower

MAXIM 3® WATER HEATER 30 PV500-50 08/14 14.1 Control Panel

MAXIM 3® WATER HEATER 31 PV500-50 08/14 14.2 Control Panel Components (Optional components may not be included) Key No. Part No. Description Qty.

MAXIM 3® WATER HEATER 32 PV500-50 08/14 14.3 Burner Assembly Optional components may or may not be shown

MAXIM 3® WATER HEATER 33 PV500-50 08/14 14.4 Burner Assembly Components (Optional components may not be included) Item No. Qty. PVI Part No. Des

MAXIM 3® WATER HEATER 34 PV500-50 08/14 15 PERIODIC MAINTENANCE Listed below are items that must be checked to ensure safe reliable operations. Maint

MAXIM 3® WATER HEATER 35 PV500-50 08/14 6. If equipped, the combustion air filter (if equipped) should be replaced every six months. If filter block

MAXIM 3® WATER HEATER 36 PV500-50 08/14 16 RECOMMENDED MAINTENANCE SCHEDULE 1. Annual Maintenance a. Check all joints and pipe connections for tigh

MAXIM 3® WATER HEATER 37 PV500-50 08/14 NOTES:

MAXIM 3® WATER HEATER 38 PV500-50 08/14 MODEL NUMBER: SERIAL NUMBER: INSTALLATION DATE: PVI INDUSTRIES®, LLC • 3209 Galvez Ave. • F

MAXIM 3® WATER HEATER 4 PV500-50 08/14 1 SAFETY CONSIDERATIONS WARNING: If the information in the supplied manual(s) is not followed exactly, a fi

MAXIM 3® WATER HEATER 5 PV500-50 08/14 IMPORTANT SAFETY NOTE It takes only 5 seconds of skin contact with 140°F water to cause a second degree bu

MAXIM 3® WATER HEATER 6 PV500-50 08/14 2 PRODUCT DESCRIPTION Component, Controls and Connection Locations (Locations and Connections May Vary)

MAXIM 3® WATER HEATER 7 PV500-50 08/14 3 WATER HEATER INSTALLATION 3.1 Checking Equipment Before You Install Inspect the unit completely upon rec

MAXIM 3® WATER HEATER 8 PV500-50 08/14 3.5 Service Clearances Allow sufficient space to provide adequate clearances on all sides for service and insp

MAXIM 3® WATER HEATER 9 PV500-50 08/14 WATER HEATER PIPING GUIDELINE One Water Heater – One Sidearm Storage Tank WATER HEATER PIPING GUIDELINE Tw