Paloma PTG-74X Use & Care Manual

Manual is about: Tankless Residential Outdoor Gas 199,900 BTU Max Input

Summary of PTG-74X

  • Page 1

    Ap13592 (06/04) 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 ● do not try to light any appliance. ● do not...

  • Page 2

    Safety information safety precautions. . . . . . . 3–6 lp gas models . . . . . . . . . . . 5 installation instructions location . . . . . . . . . . . . . . . . . 7 water connections. . . . . . 9-10 gas supply. . . . . . . . . . . . . . 11 high altitude . . . . . . . . . . . . 11 venting . . . . . . ...

  • Page 3

    Be sure to read and understand the entire use and care 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 ha...

  • Page 4: D A N G E R

    Time/temperature relationship in scalds water temperature time to produce a serious burn 120°f more than 5 minutes 125°f 1 1 / 2 to 2 minutes 130°f about 30 seconds 135°f about 10 seconds 140°f less than 5 seconds 145°f less than 3 seconds 150°f about 1 1 / 2 seconds 155°f about 1 second table court...

  • 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. ● 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 eithe...

  • Page 8

    8 installing the water heater. Proper operation of the water heater requires air for combustion and ventilation. Provisions for combustion and ventilation air must comply with referenced codes and standards. Combustion and ventilation air this water heater is for outdoor installation only. It must n...

  • Page 9

    9 water supply connections important: 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 component...

  • Page 10

    10 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, must be installed at the hot water outlet connection of the water heater at the time of installation. ...

  • Page 11

    11 warning: do not attempt to convert this water heater for use with a different type of gas other than the type shown on the rating plate. Such conversion could result in hazardous operating conditions. Leak testing the water heater and its gas connections must be leak tested at normal operating pr...

  • Page 12

    12 installing the water heater. Flue terminal location the location of the vent terminal depends on the following minimum clearances and considerations (see illustration): twelve (12) inches above grade level and above normal snow levels. Four (4) feet below, or four (4) feet horizontally from any d...

  • Page 13

    13 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 the location of the remote control(s):...

  • Page 14

    14 installing the water heater. 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 c...

  • Page 15

    15 electrical connection hardwiring the electrical connections: ● wiring should be carried out by a qualified electrician in accordance with local codes. ● the water heater requires 120 vac/60hz and should be properly grounded. ● do not connect grounding wire to water pipes, gas pipes, telephone cab...

  • Page 16

    16 installing the water heater. Typical installation to hot water faucet(s) air relief valve discharge line (to suitable drain) pressure relief valve union drain valve 6" air gap manual gas appliance shut-off (supplied) sediment trap manual gas supply line shut-off valve union cap cold water supply ...

  • Page 17

    17 for increased energy efficiency, use pipe insulation. Please install the insulation, according to the illustrations above, making sure to insulate all the way to the top. Do not cover any drain or pressure valve(s). Do’s ❑ do check inlet gas pressure to ensure that it is within the range specifie...

  • Page 18

    Installing the water heater. 18 a water heater location ❑ installed outdoors. ❑ close to area of mostly used outlet. ❑ protected from freezing temperatures. ❑ proper clearance from combustible surfaces observed. ❑ sufficient fresh air supply for proper operation of water heater. ❑ air supply free of...

  • Page 19: Lighting The Water Heater.

    19 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 20: Operating The Water Heater.

    20 time/temperature relationship in scalds water temperature time to produce a serious burn 120°f more than 5 minutes 125°f 1 1 / 2 to 2 minutes 130°f about 30 seconds 135°f about 10 seconds 140°f less than 5 seconds 145°f less than 3 seconds 150°f about 1 1 / 2 seconds 155°f about 1 second table co...

  • Page 21

    21 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 length of pipe from the water heater. Th...

  • Page 22

    22 care and cleaning of the water heater. Routine preventative 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, air intake, water filter and flue terminal should be mad...

  • Page 23

    23 burner inspection visually inspect the main burners annually. Through the sight glass, inspect the burner flame with the main burner off and inspect the main burner while firing. If any unusual burner operation is noted, the water heater should be shut off until qualified service assistance can b...

  • Page 24

    24 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 25

    25 before you call for service… problem possible cause check shutoff valve and open fully. Hot water faucet is not fully opened. Water piping is frozen. Allow piping to thaw no electricity or water supply is cut off. Unit is not "on". The temperature may be set too low. Increase the temperature sett...

  • Page 26: Error Code Guide

    26 error code guide error code possible cause open the gas shutoff valve completely. 1l water heater has a build up of lime contact a dealer for service. 99 decrease of blower motor ventilation amount. (operation stops) 12 15 16 what to do 11 the operation automatically stops when used for an hour c...

  • Page 27: 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 28

    28 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 installer, plumbing contractor or previously agreed upon service agency. In the event the firm has moved, or ...