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  5. Installation And Operating Instruction Manual

Paloma Tankless Water Heater Installation And Operating Instruction Manual

Manual is about: With Installation Instructions for the Installer

Summary of Tankless Water Heater

  • Page 1

    Direct vent water heater for your safety! — do not store or use gasoline or other flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. To do so may result in an explosion or fire. — what to do if you smell gas l do not try to light any appliance....

  • Page 2

    Safety information safety precautions. . . . . . . 3–6 lp gas models . . . . . . . . . . . 5 installation instructions location of water heater . 7, 8 venting . . . . . . . . . . . . . . . 9-15 water connections. . . . . 16-18 gas supply . . . . . . . . . . . . . . 19 high altitude . . . . . . . . ....

  • Page 3

    Be sure to read and understand the entire instruction manual before attempting to install or operate this water heater. It may save you time and money. Pay particular attention to the safety instructions. Failure to follow these warnings could result in serious bodily injury or death. Should you hav...

  • Page 4: D A N G E R

    Time/temperature relationship in scalds water temperature time to produce a serious burn 120°f (49°c) more than 5 minutes 125°f (52°c) 1 1 / 2 to 2 minutes 130°f (54°c) about 30 seconds 135°f (57°c) about 10 seconds 140°f (60°c) less than 5 seconds 145°f (63°c) less than 3 seconds 150°f (66°c) about...

  • Page 5

    5 both lp and natural gas have an odorant added to aid in detecting a gas leak. Some people may not physically be able to smell or recognize this odorant. If you are unsure or unfamiliar with the smell of lp or natural gas, ask the gas supplier. Other conditions, such as “odorant fade”, which causes...

  • Page 6

    6 have the installer show you the location of the gas shut-off valve and how to shut it off if necessary. Turn off the manual shut-off valve if the water heater has been subjected to overheating, fire, flood, physical damage or if the gas supply fails to shut off. L read this manual entirely before ...

  • Page 7

    Installing the water heater : this water heater must be installed in accordance with these instructions, local codes, utility company requirements, and/or in the absence of local codes, use the latest edition of the american national standard/national fuel gas code. A copy can be purchased from eith...

  • Page 8

    Installing the water heater: corrosive atmospheres the air in beauty shops, dry cleaning establishments, photo processing labs, and storage areas for liquid and powdered bleaches or swimming pool chemicals often contain such halogenated hydrocarbons. An air supply containing halogenated hydrocarbons...

  • Page 9

    Venting the installation of venting must comply with national codes, local codes, and the vent manufacturer’s instructions. The water heater must be vented to the outdoors as described in these instructions. Do not connect this water heater to a chimney. It must be vented separately from all other a...

  • Page 10

    Venting through closed spaces if the vent piping passes through a closed space, a minimum clearance of 8” (20 cm) when installed horizontally, 6” (15 cm) when installed vertically should be maintained between the vent pipe and combustibles and noncombustibles. Be sure to follow local codes and vent ...

  • Page 11

    11 d v v e fixed clos ed ope rab le ope rab le fixe d clos ed v v b l f c b v v v x b b b a j c i h x v m k v g a the following information should be used for determining the proper location of the vent terminal for direct vent tankless water heaters. V v e n t x air supply inlet a r e a where termi...

  • Page 12

    Additional considerations do not install vent terminal under any patio or deck. To help prevent moisture from freezing on walls and under eaves, do not locate vent terminal on the side of a building with prevailing winter winds. To help prevent water lines from freezing do not locate vent terminal o...

  • Page 13

    Wipe ends with alcohol pads male end female end snap ring outer vent 1” overlap install self- tapping screws before starting the vent installation, careful planning should be given to the routing and termination of the vent and air intake pipe see figure on page 11 and 12. The vent system requires m...

  • Page 14

    14 installing the water heater: horizontal vent installation continued. Use 4 hollow wall anchors, at least 1/8 inch (0.32 cm) in diameter and of appropriate length for the thickness of the sheathing, if sheathing is particle board or other composite material. Use 4 #10x1-1/4” wood screws for plywoo...

  • Page 15

    15 vertical vent installation a fire stop plate should be installed at every penetration of a floor or ceiling if the vent is not running in a fire-rated shaft. Maintain the recommended air space clearance to combustible materials and building insulation. Once the vent terminal location has been det...

  • Page 16

    Notice: do not apply heat to the hot or cold water connections. If sweat connections are used, sweat tubing to adapter before fitting adapter to the water connections on heater. Any heat applied to the water supply fittings will permanently damage the internal components of the water heater. Mountin...

  • Page 17

    17 water supply connections continued. L to supply hot water to upper floors, additional water pressure (0.44 psi/ft) (10 kpa/m) must be ensured. The measurement should be calculated by the distance between the water inlet of the water heater (ground level) to the hot water faucet (upper floor level...

  • Page 18

    18 installing the water heater: relief valve a new pressure relief valve, complying with the standard for relief valves and automatic gas shut-off devices for hot water supply systems, ansi z21.22/ csa 4.4, must be installed at the hot water outlet connection of the water heater at the time of insta...

  • Page 19

    This water heater is certified for instal- lations up to 3,280 feet (1000 m) above sea level. The input rating of this water heater is based on sea level operation. At higher elevations the actual input rate may be lower than the value listed on the rating label. Notice: for installations above 3,28...

  • Page 20

    20 installing the main remote control. Remote control installation one (1) remote control is provided with the water heater. Additional remote controls may be purchased separately. Up to three (3) remote controls can be used with this water heater. The following are considerations for determining th...

  • Page 21

    21 warning: field wiring connections and electrical grounding must comply with local codes, or in the absence of local codes, with the latest edition of the national electrical code, ansi/nfpa 70, or in canada, canadian electrical code, csa c22.1 part 1. Remote control connection terminals gas valve...

  • Page 22

    22 installing the water heater. Electrical connection power cord: l the electric power supply requirement for this water heater is 120 vac/60hz, 2 amps. L the water heater comes with a three (3) pin power supply cord. Use only a power outlet with a ground terminal. L the installation of an electric ...

  • Page 23

    23 typical installation of direct vent water heater discharge line (to suitable drain) to hot water faucet(s) relief valve union drain valve 6" (15 cm) air gap manual gas appliance shut-off (supplied) sediment trap manual gas supply line shut-off valve union cap cold water supply shut-off valve chec...

  • Page 24

    24 installing the water heater: for increased energy efficiency, use pipe insulation. Please install the insulation, according to the figures above, making sure to insulate all the way to the top. Do not cover any drain or pressure relief valve(s). Do’s q do follow all installation instructions cove...

  • Page 25

    25 a. Water heater location q close to area of vent termination. Q indoors and protected from freezing temperatures . Q proper clearance from combustible surfaces observed. Q sufficient fresh air supply for proper operation of water heater. Q air supply free of corrosive elements and flammable vapor...

  • Page 26: Lighting The Water Heater:

    26 lighting the water heater: before operating this water heater, be sure to read and follow the instructions on the label pictured below and all other labels on the water heater, as well as the warnings printed in this manual. Failure to do so can result in unsafe operation of the water heater resu...

  • Page 27: Operating The Water Heater:

    27 time/temperature relationship in scalds water temperature time to produce a serious burn 120°f (49°c) more than 5 minutes 125°f (52°c) 1 1 / 2 to 2 minutes 130°f (54°c) about 30 seconds 135°f (57°c) about 10 seconds 140°f (60°c) less than 5 seconds 145°f (63°c) less than 3 seconds 150°f (66°c) ab...

  • Page 28

    28 operating the water heater continued. Water temperature setting… maximum water temperature occurs while the burner is on. To determine the water temperature, turn on a hot water faucet and place a thermometer in the water stream. Water temperature at the faucet may vary depending on season and le...

  • Page 29

    29 care and cleaning of the water heater: routine preventive maintenance properly maintained, your water heater will provide years of dependable trouble- free service. It is recommended that a periodic inspection of the burner, relief valve, water filter, and venting system should be made by service...

  • Page 30

    30 venting system inspection the venting system of a direct vent water heater should be inspected annually to ensure all of the vent sections are secure and air-tight. It is recommended that qualified service personnel familiar with category iii venting inspect the venting system. Check vent connect...

  • Page 31

    31 draining the water heater freeze protection where the water heater may be exposed to freezing conditions, even for a short period of time, be sure to drain all water from the unit as instructed above. Exposure to freezing conditions can occur from down draft of venting system or from installation...

  • Page 32

    Before you call for service… troubleshooting tips save time and money! Review the charts on the following pages first and you may not need to call for service. Caution: for your safety do not attempt repair of electrical wiring, gas piping, remote control, burners, vent connectors or other safety de...

  • Page 33: Error Code Guide

    Error code guide when an error code is displayed: l close the hot water faucet, turn off the switch on the remote control. L wait for about 5 minutes before turning the switch on again. L open the hot water faucet. If the error code remains shown: l close the hot water faucet and turn off the switch...

  • Page 34: Replacement Parts.

    Spark unit acs-201x a.C. 100v 0401 on 1 2 3 4 dip1 on off 1 2 3 4 sw1 sw2 sw3 gas valve assembly heat exchanger thermistor heat exchanger outlet thermistor burner assembly (with ods) blower motor flame rod/ electrodes transformer water flow solenoid inlet thermistor ignitor pc board (pcb) burner ass...

  • Page 35

    35 required adjustment for up to 140°f (60°c) for residential or 180°(82°c) for commercial water heater temperature settings warning: refer to scald potential warnings on page 4 before making adjustment. Changing this setting is done at your own risk. Do not alter the #4 dip switch if the setting ab...

  • Page 36

    36 if you need service 1. Should you have any questions about your new water heater, or if it requires adjustment, repair, or routine maintenance, it is suggested that you first contact your paloma dealer or distributor, installer, plumbing contractor or previously agreed upon service agency. In the...

  • Page 37

    Limited warranty for the paloma gas water heater models listed on the front of this manual. 37 general this limited warranty is only available to the original owner of this water heater at the original installation location. It is not transferable. Residential is defi ned as a single family residenc...

  • Page 38

    I) damages, malfunctions, or failures caused by operating the unit at water temperatures exceeding the maximum setting of the operating, or high limit control. J) heat exchanger failures caused by operating the water heater when it is not supplied with potable water at all times. K) damages, malfunc...

  • Page 39

    Paloma industries, inc. 2151 eastman avenue oxnard, ca 93030 printed in japan 31-51901-00