Bock Water heaters EZ 75-76PDV-C Installation And Operation Instruction Manual

Power direct vent gas water heater with internal coil heat exchanger

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To the Installer:
Please attach these instructions
next to the water heater.
WARNING: If the information in these instructions is not followed exactly, a
fire or explosion may result causing property damage, pesonal injury or death.
– Do not store or use gasoline or other flammable
vapors and liquids in the vicinity of this or any
other appliance.
– WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use
any phone in your building.
!
WARNING
Improper installation, adjustment, alteration,
service or maintenance can cause serious injury or
property damage. Refer to this manual. For
assistance or additional information, consult a
qualified installer or service agency.
!
WARNING
Do not install on combustible flooring. Install in
accordance with all local codes. In the absence of
local codes, refer to NFPA 54 or ANSI Z21.10.3.
!
CAUTION
The recommended temperature for normal
residential use is 120°F. The dial on the aquastat
does not always reflect the out-coming water
temperature and it could occasionally exceed 120°F.
Variation in out-coming temperature could be
based on factors including but not limited to usage
patterns and type of installation. Test water at the
tap nearest to the water heater. See page 32 for
measuring the out-coming water temperature.
!
WARNING
Hotter water increases the risk of scald injury.
Before adjusting the water temperature setting,
read this instruction manual. Temperatures at
which injury occurs vary with the person's age and
the length of exposure. The slower reaction time of
children, elderly or physically or mentally
challenged persons increases the scalding hazard to
them. It is recommended that lower water tempera-
tures be used where these exposure hazards exist.
Households with small children or invalids may
require a temperature setting less than 120°F to
prevent accidental contact with hot water. To
produce less than 120°F, use point-of-use
temperature limiting devices.
#23407 EN
Installation and Operation Instructions Manual
®
Power Direct Vent Gas Water Heater
with Internal Coil Heat Exchanger
Models: EZ 75-76PDV-C, EZ 100-76PDV-C
Warranty, Registration Card and Parts List are included.
Homeowner: Please remember to return the Registration Card!
To the Consumer:
Please read these and all component
instructions and keep for future reference.
• Immediately call your gas supplier from a neigh-
bor's phone. Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire
department.
– Installation and service must be performed by a
qualified installer, service agency or the gas supplier.
If higher water temperature is needed in part of the
water system, automatic temperature limiting
devices must be used on all lines to water taps.
!
WARNING
Water heater blankets may restrict air flow to the
water heater and cause fire, asphyxiation, personal
injury or death.
THIS MANUAL HAS BEEN PREPARED TO ACQUAINT
YOU WITH THE INSTALLATION, OPERATION, AND
MAINTENANCE OF YOUR WATER HEATER AND TO
PROVIDE IMPORTANT SAFETY INFORMATION.
Read all instructions thoroughly before attempting
installation or operation of your water heater. Keep
these instructions for future reference.
Local plumbing and electrical codes must be
followed in the installation of this water heater. In
the absence of a local code use the UNIFORM
PLUMBING CODE and the NFPA Code. Local codes
may supersede instructions in this installation
manual.
These instructions are a guide for the correct instal-
lation of the water heater. The manufacturer will
not be liable for damages caused by failure to
comply with the installation and operating instruc-
tions outlined on the following pages.
DO NOT use this appliance if any part has been
under water. Immediately call a qualified service
technician to inspect the appliance and to replace
any part of the control system and any gas control
which has been under water.
FAILURE TO FOLLOW THESE INSTRUCTIONS OR ALL
APPLICABLE BUILDING CODES
AND REGULATIONS VOIDS THE WARRANTY ON
THIS WATER HEATER.
Rev1 9/2012

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Summary of Contents for Bock Water heaters EZ 75-76PDV-C

  • Page 1 ® Power Direct Vent Gas Water Heater with Internal Coil Heat Exchanger Models: EZ 75-76PDV-C, EZ 100-76PDV-C Warranty, Registration Card and Parts List are included. Homeowner: Please remember to return the Registration Card! WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, pesonal injury or death.
  • Page 2: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS DANGER Water heaters utilizing Liquefied Petroleum gas (LP) are different from natural gas models. A natural gas heater will not function safely on LP gas and vice versa. To avoid possible equipment damage, personal injury or fire: DO NOT connect this water heater to a fuel type not in accordance with the rating label.
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Section I: Specifications ..........4 Section II: General Information.
  • Page 4: Section I: Specifications

    SECTION I: SPECIFICATIONS - .23 /7 9  3 : /; -./0 1 /23 4 6..87  !   -./0 1 /23 4 5 265 7 - .23 /7 /* . 25  5/3 Figure 1: All Models Table 1: Dimensions DIMENSIONS INCHES (cm) Model 75 76000 74 132 76.88 67.25 26.00 60.00 28.19 16.00 11.00 34.94 60.00 1.00 1.00 0.50 EZ 75-76PDVN-C (284) (22.3) (280)*(500)* (195) (171) (66) (152) (72)
  • Page 5: Section Ii: General Information

    SECTION II: GENERAL INFORMATION WHEN YOU RECEIVE YOUR NEW WATER HEATER Check the new equipment to see if all components are in good condition. If damage is observed or parts appear to be missing, contact your wholesaler. WATER TREATMENT/FILTRATION In areas where poor water conditions are suspected (i.e. lime, iron, and other minerals), it is essential that the water be tested and appropriate action taken to prevent damage to the water heater and ensure the quality of the water.
  • Page 6 SECTION II: GENERAL INFORMATION (cont.) INTERNAL HEAT EXCHANGER COIL The water heater contains an internal heat exchanger coil which can be used in conjunction with a radiant (space) heating application. The installation of this water heater, when serving a space heating application, must be in accordance with local codes. The space heating application must be designed as a closed loop system.
  • Page 7: Section Iii: Pre-Installation

    See Section IV: Installation / Vent and Combustion Air Intake / Condensate Drain Kit for installation details. HIGH ALTITUDE Contact Bock Water Heaters for installations at altitudes greater than 2,000 feet above sea level. SECTION III: PRE-INSTALLATION LOCATION CAUTION...
  • Page 8: Combustion And Ventilation Air

    SECTION III: PRE-INSTALLATION (cont.) CAUTION Do not drop water heater or lay heater down on its side. Move the water heater into position by sliding or using an appropriately sized hand truck. CAUTION If the water heater is installed directly on carpeting, the water heater shall be installed on a metal or wood panel extending beyond the full width and depth of the water heater by at least 3 inches (76.2 mm) in any direction or, if the water heater is installed in an alcove or closet, the entire floor shall be covered by the panel.
  • Page 9: Unconfined Space

    SECTION III: PRE-INSTALLATION (cont.) UNCONFINED SPACE Unconfined space is defined by NFPA 54 as a space with a volume greater than 50 cubic feet (during typical use) per 1000 BTUH of the total combined input of all fuel burning appliances in the space.
  • Page 10: Section Iv: Installation

    The following materials are approved for use for the fittings in the vent and combustion air intake systems: • PVC (Schedule 40 DWV, ASTM D2665) • CPVC (Schedule 40, ASTM F438) • ABS (Schedule 40 DWV, ASTM D2661) Please contact Bock Water Heaters for questions regarding materials that are not listed above. Page 10...
  • Page 11 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) NOTICE Installations in Canada must conform to the requirements of CSA B149 code. Plastic vent systems must be assembled with pipe, fittings, cements, and primers listed to ULC S636. Components of this listed system shall not be interchanged with other vent systems or unlisted pipe/fittings.
  • Page 12 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) For quick reference, Tables 6 and 7 give the maximum allowable length of straight pipe based on the total number of elbows per pipe run. Table 6: Maximum Pipe Lengths Quick Reference (Two-Pipe Terminations) Maximum Equivalent Pipe # of 90°...
  • Page 13 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) The vent and combustion air intake systems must be sufficiently supported along vertical and horizontal sections. At minimum, it is recommended that a support is placed along the vent or air intake piping every 4 feet. For horizontal systems, the first support shall be located immediately adjacent to the first 90-deg.
  • Page 14 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Table 8: Direct Vent Terminal Clearances Canadian Installations US Installations A = Clearance above grade, veranda, 12 inches (30 cm) 12 inches (30 cm) porch, deck, or balcony B = Clearance to window or door that 12 inches (30 cm) 12 inches (30 cm) may be opened...
  • Page 15 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Install piping through the wall as shown in Figure 3. Adequate length of pipe must protrude beyond the exterior wall for attachment of the termination fitting. The recommended distance between the terminal fitting and the exterior wall is 1 in. (2.5 cm). Directions for cementing joints (such as the terminal fittings to the straight pipe) can be found on page 24.
  • Page 16 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Horizontal Venting, Power Vent 1-pipe termination This water heater may be vented horizontally (through a sidewall) with a one-pipe termination. In this case, the water heater will be utilizing air from inside the building for combustion air.
  • Page 17 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Table 9: Power Vent Terminal Clearances Canadian Installations US Installations A = Clearance above grade, veranda, 12 inches (30 cm) 12 inches (30 cm) porch, deck, or balcony 4 feet (1.2 m) below or to side B = Clearance to window or door that 12 inches (30 cm) of opening;...
  • Page 18 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Install piping through the wall as shown in Figure 6. Adequate length of pipe must protrude beyond the exterior wall for attachment of the termination fitting. The recommended distance between the terminal fitting and the exterior wall is 1 in. (2.5 cm). Directions for cementing joints (such as the terminal fittings to the straight pipe) can be found on page 24.
  • Page 19 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Horizontal Venting, Direct Vent Concentric termination This water heater may be vented horizontally (through a sidewall) with a concentric vent termination kit. One hole through an exterior wall is required for the concentric vent. Both combustion air intake and vent pipes must be attached to the concentric vent termination.
  • Page 20 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Install the rain cap and small pipe assembly into the wye concentric fitting and large pipe assembly. Ensure small diameter pipe is bottomed and cemented in wye concentric fitting. Complete indoor piping runs and connect piping to the water heater. See Figure 4, 3" pipe systems, for connection details.
  • Page 21 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Install piping through the roof as shown in Figure 10. Adequate length of pipe must protrude beyond the exterior of the roof (see dimension Y). Directions for cementing joints (such as the terminal fittings to the straight pipe) can be found on page 24.
  • Page 22 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Vent Terminal Dim Y Dim Y Requirements 1) Minimum 12 in. (30 cm) above roof (US). Minimum 18 in. (46 cm) above roof (Canada). 2) Minimum 12 in. (30 cm) above Support anticipated snow level (US).
  • Page 23 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Vertical Venting, Direct Vent Concentric termination This water heater may be vented vertically (through a roof) with a concentric vent termination kit. One hole through the roof is required for the concentric vent. Both combustion air intake and vent pipes must be attached to the concentric vent termination.
  • Page 24 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) Note: Do not allow insulation or other materials to accumulate inside pipe assembly when installing through the roof. Install the rain cap and small pipe assembly into the wye concentric fitting and large pipe assembly. Ensure small diameter pipe is bottomed and cemented in wye concentric fitting.
  • Page 25 SECTION IV: INSTALLATION (cont.) VENT & COMBUSTION AIR INTAKE (cont.) • Over the wet primer, apply a medium coat of cement to the fitting socket and pipe joint area. • Insert pipe into fitting with a slight twisting motion. Ensure that the pipe is bottomed into the fitting.
  • Page 26: Water Connections

    SECTION IV: INSTALLATION (cont.) WATER CONNECTIONS CAUTION This water heater incorporates fittings that contain a nonmetallic lining. DO NOT apply heat to these fittings when making sweat connections to the heater. Sweat tubing to an adapter before securing adapter to any fittings on water heaters. ALL PIPING SHOULD CONFORM TO LOCAL CODES AND ORDINANCES.
  • Page 27: Gas Connections

    Consult your local gas company or Bock Water Heaters with any questions. A manual valve, union, and a sediment trap shall be provided in front of the gas valve. All gas piping must conform to local codes and/or the National Fuel Gas Code ANSI 223.1/NFPA 54 or...
  • Page 28 SECTION IV: INSTALLATION (cont.) GAS CONNECTIONS (cont.) Figure 16: Gas Piping to Valve/Control Figure 17: Recommended Water, Gas, Vent Connections Page 28...
  • Page 29 SECTION IV: INSTALLATION (cont.) WIRING All electrical wiring and connections must be in accordance with local codes. In the absence of local codes, wiring must conform to the National Electric Code ANSI/NFPA No. 70 or the Canadian Electrical Code C22.1. This water heater must be electrically grounded. Electrical power should be supplied through a fused disconnect switch located near the water heater.
  • Page 30: Section V: Operation

    SECTION V: OPERATION Figure 19: Instructions To Put The Water Heater In Operation Page 30...
  • Page 31: Sequence Of Operation

    SECTION V: OPERATION (cont.) SEQUENCE OF OPERATION Figure 20 gives a step-by-step description of APPLY POWER TO APPLIANCE the sequence of operations for this water heater. See Troubleshooting section of this manual for solutions to error codes. DISPLAY ERROR CODE IS FIELD WIRING CORRECT? REQUEST...
  • Page 32 SECTION V: OPERATION (cont.) INSPECT THE INSTALLATION AND ADJUST THE CONTROLS For natural gas, the manifold pressure is preset at 4.0” w.c. and the acceptable inlet pressure is in the range of 5-14” w.c. For propane gas, the manifold pressure is preset at 10.0” w.c. and the acceptable inlet pressure is in the range of 11-14”...
  • Page 33: Section Vi: Maintenance

    SECTION VI: MAINTENANCE NOTICE TO THE OWNER: If you are having a mechanical problem with your water heater, contact your service company or installer. WATER PIPING On an annual basis, all piping should be checked for leakage at joints, shut-off valves, and unions.
  • Page 34 SECTION VI: MAINTENANCE (cont.) INSPECT THE VENTING SYSTEM, FLUE, AND BURNER The vent and combustion air intake system should be checked at least once a year for damage and blockage. Make sure all joints are secure and that the system is properly supported. Inspect the outdoor terminals to make sure they are free of obstructions.
  • Page 35: Section Vii: Troubleshooting

    SECTION VII: TROUBLESHOOTING CAUTION For your safety, the repair and servicing of this equipment shall only be performed by a qualified agency. Table 10: Troubleshooting Problem Possible causes Recommended Action 1) Contact qualified agency to purge the air from the 1) Air in the gas line.
  • Page 36 SECTION VII: TROUBLESHOOTING (cont.) Table 11: Control LED Codes LED Error Code Problem Solution Error 1 Open earth ground circuit to the ignition system. 1) Check that the earth ground conductor is properly connected at the fuse box or breaker panel and the water heater. 2) Check that the grounding conductors on the water heater are properly connected and secure.
  • Page 37: Section Viii: Parts List

    SECTION VIII: PARTS LIST Figure 22: EZ PDV-C Parts Table 12: EZ PDV-C Parts Part Description Blower Assembly Inner Door, Right Side Flue Baffle Inner Door, Left Side Hot Outlet Nipple Air Intake Boot Dip Tube Trim Plate Anode Rods PVC Pipe, Ø3"...
  • Page 38 SECTION VIII: PARTS LIST (cont.) Figure 23: EZ PDV-C Burner Parts Table 13: EZ PDV-C Burner Parts Part Description Burner Main Burner Tube (NAT or LP) Ignitor and Flame Sensor Assembly Orifice (NAT or LP) Page 38...
  • Page 39: Section Ix: Warranty

    SECTION IX: WARRANTY LIMITED WARRANTY FOR GAS-FIRED WATER HEATER Bock Water Heaters, Inc. 110 S. Dickinson Street Madison, WI 53703 Phone: 608-257-2225 WHAT DOES THIS LIMITED WARRANTY COVER? This limited warranty applies only to the original consumer purchaser. General Defects and Malfunctions: This warranty covers defections and malfunctions in your new water heater for a period of one year from the original installation date.
  • Page 40 INDIRECT, AND WHETHER ARISING IN CONTACT OR TORT. Some states do not allow the exclusion of incidental or consequential damages, so the above exclusion may not apply to you. Bock Water Heaters, Inc. • 110 South Dickinson Street • Madison, WI 53703 Telephone 608 -257-2225 • Fax 608 -257-5304 www.bockwaterheaters.com...

This manual is also suitable for:

Ez 100-76pdv-c

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