Laars Mighty Therm AP Installation and operation instructions manual

Manual is about: Pool Heating Boiler Sizes 500 - 1825

Summary of Mighty Therm AP

  • Page 1

    U 6 0 0 3 t n e m u c o d s n o it c u rt s n i n o it a r e p o d n a n o it a ll a t s n i u0 03 76 00 h model ap sizes 500 - 1825 these instructions are to be stored in the pocket provided on the heater. Installation and operation instructions for mighty therm pool heating boiler warning i f the ...

  • Page 2

    Laars heating systems page 2 table of contents section 1 general information 1.1 introduction .................................................... 3 1.2 heater identifi cation ....................................... 3 1.3 primary/secondary pump and piping ............ 3 1.4 certifi cations ..............

  • Page 3

    Mighty therm commercial pool heating boiler page 3 section 1 general information 1.1 introduction this manual provides information for the installation and operation of laars model ap pool heating boilers. It is strongly recommended that all application and installation procedures be reviewed comple...

  • Page 4

    Laars heating systems page 4 section 2 installation 2.1 heater placement the pool heater must be placed to provide specifi c clearances on all sides for maintenance and inspections. There must also be minimum distances maintained from combustible surfaces. These clearances also apply to noncombustibl...

  • Page 5

    Mighty therm commercial pool heating boiler page 5 figure 4 - typical heater installation on roof using 4x4 stringer figure 5 - installation on concrete blocks or tile b. Forced-air ventilation in the united states: any equipment which exhausts air from the boiler room can deplete the combustion air...

  • Page 6

    Laars heating systems page 6 direction of fl ow. A vent connector should be supported for the design and weight of the material used to maintain clearances and prevent physical damage and separation of joints. Avoid terminating heater vents near air conditioning or air supply fans. The fans can pick ...

  • Page 7

    Mighty therm commercial pool heating boiler page 7 7. Tout mauvais fonctionnement du systéme dʼévacuation commun devrait être corrigé de façon que lʼinstallation soit conforme au national fuel gas code, ansi.Z223.1 et (ou) aux codes dʼinstallation csa b149. Si la grosseur dʼune section du système dʼ...

  • Page 8

    Laars heating systems page 8 before operating the heater, the complete gas supply system and all connections must be tested for leaks using a soap solution. Do not use raw fl ame. Caution since some leak test solutions (including soap and water) may cause corrosion or stress cracking, the piping must...

  • Page 9

    Mighty therm commercial pool heating boiler page 9 auxiliary time clock wiring: if a time clock is used to control the fi lter pump operation, a separate switch or relay must be used to shut off the heater at least 15 minutes before the fi lter pump is shut off. Wire the switch or relay (often called ...

  • Page 10

    Laars heating systems page 10 after the pump shuts off will not siphon chlorine solution into the heater. 4. When the operation of a chlorinator is such that it must be installed in the pump suction, or some other place where the chlorine solution fl ows through the heater, corrosion of the heater ca...

  • Page 11

    Mighty therm commercial pool heating boiler page 11 figure 11 - control locations rating plate manual pilot valve water circulating pump safety gas valve operating/safety gas valve ignition control flow switch pressure relief valve power (on/off/auto) switch pump time delay relay operating controls ...

  • Page 12

    Laars heating systems page 12 and the chemical balance of the water has been adjusted to a stable ph of 7.2 to 7.8. After the pool water is fi ltered, and the ph is verifi ed at 7.2 to 7.8, verify that the chlorine or bromine residual is no more than 2.0 to 4.0 ppm, the total alkalinity is 80 - 120 pp...

  • Page 13

    Mighty therm commercial pool heating boiler page 13 2. Manual hi-limit checkout. The manual high limit capillary bulb is installed at the heater outlet. (this is not the auto reset high limit installed in the pool return line). For spas see section 3.9. The manual reset high limit is factory preset ...

  • Page 14

    Laars heating systems page 14 3. To ensure that the spa inlet water does not exceed 104°f (40°c), the spa fi lter pump must circulate at the minimum fl ow rates shown in table 5. Heater model minimum filter pump flow rate 500 220 gpm 600 270 gpm 715 320 gpm 850 380 gpm table 5 - minimum filter pump fl...

  • Page 15

    Mighty therm commercial pool heating boiler page 15 section 4 maintenance 1. Inspect the pump seal every 6 months. Replace the pump if the seal shows signs of leakage or wear. 2. At start-up and every six (6) months thereafter, the pilot and main burner fl ame should be observed for proper performanc...

  • Page 16

    Laars heating systems page 16 the general recommendations include keeping the water chemistry stable within the following guidelines: ph: 7.2 to 7.8 free available chlorine: 2.0 - 4.0 ppm total alkalinity: 80 - 120 ppm calcium hardness: 200 - 400 ppm total dissolved solids: these values are importan...

  • Page 17

    Mighty therm commercial pool heating boiler page 17 1. Symptom: heater is pounding, knocking or emitting steam from relief valve possible cause what to do a. Low or no water fl ow a. Is the heater wired into the fi lter pump circuit so that the heater cannot fi re (most likely). Unless the pump is runn...

  • Page 18

    Laars heating systems page 18 section 6 parts description and order numbers jacket and combustion chamber components 1 t op panel assembly 10535701 10535702 10535703 10535704 10535705 10535706 10535707 10535708 10535709 2 spacer , flue collector - - - 10540800 10540800 10540800 10540800 10540800 105...

  • Page 19

    Mighty therm commercial pool heating boiler page 19 figure 17. Parts identifi cation. One piece pump volute.

  • Page 20

    Laars heating systems page 20 25 drafthood, relief baffl e, right 10540901 10540902 10540903 10540904 10540905 10540906 10540907 10540908 10540909 26 drafthood, relief baffl e, left 10541001 10541002 10541003 10541004 10541005 10541006 10541007 10541008 10541009 27 lower front panel/ 10554601 10554602...

  • Page 21

    Mighty therm commercial pool heating boiler page 21 36 baffl e, heat exchanger {8-t ube} 10534601 10534602 10534603 10534604 10534605 10534606 10534607 — — (7) (14) (14) (14) (14) (28) (28) — — baffl e, heat exchanger {10-t ube} — — — — — — — 10667708 10667709 (28) (14) baffl e, heat exchanger {10-t ub...

  • Page 22

    Laars heating systems page 22 51 pump housing {glassed cast iron} 10261501 10261501 10261501 10261501 10261501 10261501 10261501 10261501 10261501 pump housing {bronze} 10483301 10483301 10483301 10483301 10483301 10483301 10483301 10483301 10483301 casting, pump v olute s2056900 s2056900 s2056900 s...

  • Page 23

    Mighty therm commercial pool heating boiler page 23 safety gas v alve, on-of f {lp} v0046600 v0046600 v0046600 v0046600 v0046600 v0046600 v0046700 v0046700 v0046700 63 v alve, gas, operating/reg. V0051200 v0051200 v0051200 v0051200 v0051300 v0051300 v0051300 v0051400 v0051400 on-of f {nat.} v alve, ...

  • Page 24

    Laars heating systems page 24 figure 18 - tile assemblies when ordering tiles: assembly number is for all tiles. Part numbers shown for the front of unit are the same for the rear tiles. Check dimensions of old tile as shown here to confirm part number..

  • Page 25

    Mighty therm commercial pool heating boiler page 25 figure 19 - outdoor parts 1 2 3 4 5 6 7 8 9 10 11 12 14 15 16 17 18 19 13 20

  • Page 26

    Laars heating systems page 26 outdoor jacket, combustion chamber , heat exchanger components refer t o figure 19 for placement 5 rear panel, flue collector {outdoor} 10661701 10661702 10661703 10661704 10661705 10661706 10661707 10661708 10661709 6 front support, flue collector 10662101 10662102 106...

  • Page 27

    Mighty therm commercial pool heating boiler page 27 4 upper rear panel 10658701 10658702 10658703 10658704 10658705 10658706 10658707 10658708 10658709 5 gap closure-side 10660200 10660200 10660200 10660200 10660200 10660200 10660200 10660200 10660200 (2) (2) (2) (2) (2) (2) (2) (2) (2) 6 gap closur...

  • Page 28

    H0067300u 800.900.9276 • fax 800.559.1583 (customer service, service advisors) 20 industrial way, rochester, nh 03867 • 603.335.6300 • fax 603.335.3355 1869 sismet road, mississauga, ontario, canada l4w 1w8 • 905.238.0100 • fax 905.366.0130 www.Laars.Com litho in u.S.A. © laars heating systems 0806 ...