AquaStar 38B LP manual

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A good user manual

The rules should oblige the seller to give the purchaser an operating instrucion of AquaStar 38B LP, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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What should a perfect user manual contain?

First and foremost, an user manual of AquaStar 38B LP should contain:
- informations concerning technical data of AquaStar 38B LP
- name of the manufacturer and a year of construction of the AquaStar 38B LP item
- rules of operation, control and maintenance of the AquaStar 38B LP item
- safety signs and mark certificates which confirm compatibility with appropriate standards

Why don't we read the manuals?

Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of AquaStar 38B LP alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of AquaStar 38B LP, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the AquaStar service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of AquaStar 38B LP.

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It is mostly in the manuals where we will find the details concerning construction and possibility of the AquaStar 38B LP item, and its use of respective accessory, as well as information concerning all the functions and facilities.

After a successful purchase of an item one should find a moment and get to know with every part of an instruction. Currently the manuals are carefully prearranged and translated, so they could be fully understood by its users. The manuals will serve as an informational aid.

Table of contents for the manual

  • Page 1

    W ARNING : Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information consult a qualified installer , service agency or the gas supplier . Upon completion of the installation, these instructions should be handed to the user of the applianc[...]

  • Page 2

    2 This well engineered, gas water heater has all the fea- tures a water heater should have: It operates on the principle of heating water instantaneously “on demand”. When a hot water faucet is opened, cold water flows through the coils of the heat exchanger in the Aquastar . This same flow opens the gas valve, and the burners are ignited by th[...]

  • Page 3

    3 If you are using the AquaStar for combined space heating and potable water heating (see schematic diagram below) , all piping and other components connected to the system must be suitable for potable water , (b) toxic chemicals such as those commonly used for boiler treatment to prevent corrosion and freezing must not be introduced into the syste[...]

  • Page 4

    4 GENERAL RULES T O FOLLOW FOR SAFE OPERA TION 1. Y ou should follow these instructions when you install your heater . In the United States: The installation must conform with local codes or , in the absence of local codes, the National Fuel Gas Code ANSI Z223.1/NFP A 54. In Canada: The Installation should conform with CGA B149.(1,2) INST ALLA TION[...]

  • Page 5

    5 Appliances located in confined spaces:) The confined space must be provided with two permanent openings, one commencing within 12 inches of the top and one commencing within 12 inches of the bottom of the enclosure. Each opening must have a minimum free area of one square inch per: - 1000 Btu/hr if all air is taken from inside the building. - 200[...]

  • Page 6

    6 W ARNING Note: The burners of an instantaneous “on demand” water heater such as the AquaStar are only on at the time that hot water is actually being used, the venting stack is therefore cold except for the short durations when hot water is being used, it is therefore very important that the venting and air supply be adequate to provide a goo[...]

  • Page 7

    7 Fig. 3 - W ater valve, top view Connecting the pressure relief valve (PRV) A listed pressure relief valve supplied with the heater must be installed at the time of installation. Should a discharge line be added to the PRV no valve is to be placed between the PRV and the heater . No reducing coupling or other restriction may be installed in the di[...]

  • Page 8

    8 Fig. 6 - W ater Flow Control Knob What is the best temperature setting? Because AquaStar water heaters deliver endless hot water at the temperature you have selected, there is no need to produce very hot water and then mix in cold. It just does not make sense to overheat water and then mix in cold to cool it off. Y ou cannot run out of hot water [...]

  • Page 9

    9 Fig. 8 - Pilot burner with air screen/ pilot orifice Fig. 7 - Characteristic Pilot Flame MAINTENANCE AND SERVICE Approximately once a year , the AquaStar should be checked, cleaned and serviced as necessary . T o remove the front cover , first remove the incandescent particle tray , then pull off the temperature adjustment knob, unscrew and remov[...]

  • Page 10

    10 TROUBLE SHOOTING Introduction The AquaStar 38 burners are ignited by a water flow valve. Numerous water related problems can cause this water valve to malfunction such as: Insufficient water flow volume to activate the burners at its minimum flow requirement; Dirt in the water flow valve causing it to malfunction; Sediment build-up in faucet aer[...]

  • Page 11

    11 BURNERS DO NOT IGNITE WHEN HOT W A TER IS TURNED ON 1. Pilot is not on. Light the pilot. See lighting instructions. 2. Pilot lighting push button not turned to proper position Be sure that once the pilot flame is on, that the gas valve button ( ) is slid all the way to the right to the ON position ( ). 3. Cold incoming water connection made to w[...]

  • Page 12

    12 heaters, the burners of a tankless water heater must be very powerful to heat water instantaneously since they do this only at the time hot water is actually being used. It is therefore imperative that the gas pressure requirement be met exactly . Insufficient gas pressure will directly af fect the water temperature at the time of usage. See pag[...]

  • Page 13

    13 Fig. 9 - Diagram of AquaStar 38 B 2 4 8 10 1 7 9 11 1. Heat exchanger 2. Pilot assembly 3. Burner manifold gas pressure test nipple 4. Pilot gas tubing 5. Main gas burner 6. Inlet gas pressure test nipple 7. Gas valve 8. Gas control slide 9. Piezo igniter 10. T emperature adjustment knob 1 1. W ater valve 3 5 6[...]

  • Page 14

    Fig. 10 - INTERIOR COMPONENTS DIAGRAM AND P ARTS LIST[...]

  • Page 15

    Fig. 10 INTERIOR COMPONENTS DIAGRAM AND P ARTS LIST 38B 1 Cover ¤ 8 705 421 021 2 T emperature adjustment knob ¤ 8 702 000 182 3 Panel back ¤ 8 705 402 170 4 Draft divertor ¤ 8 705 505 361 5 Heat exchanger ¤ 8 705 406 233 6 Overheat sensor (ECO) ¤ 8 707 206 040 7 Hot water pipe ¤ 8 700 703 038 8 Main burner assembly LPG 8 708 120 301 Main bu[...]

  • Page 16

    GA S LINE SIZE Natural Gas Nominal Iron Pipe Size* 3/8" 1/2" MAXIMUM LENGT H 20' 80' Liquid Pr opane Semi-rigid Tubing 3/8" 1/2" MAXIMUM LENGT H 10' 60' * Flex tubi ng gr eatly r educes capacity and, therefore, is not r ecommended. Minimum Vent Size* and Height Minimum Diameter Minimum Height** 4 inches 6 fee[...]