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Laars IGI-180C-5N Installation and operating instruction manual

Manual is about: TANKLESS GAS WATER HEATER FOR INTERIOR INSTALLATION

Summary of IGI-180C-5N

  • Page 1

    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. • immediately call your gas supplier from a ...

  • Page 2

    2 this water heater has a limited warranty. The warranty for this water heater is valid only if the water heater has been installed, maintained and operated in accordance with these instructions. Notice section i: important information table of contents i important information 2 vii gas connections ...

  • Page 3

    3 do not store or use gasoline or other flammable, combustible, or corrosive vapors and/or liquids in the vicinity of this or any other appliance. Failure to properly install the vent and air intake (if applicable) system could result in property damage, personal injury, or death. Do not install any...

  • Page 4

    4 do not tamper with or alter the water heater and/or controls. Do not operate water heater with jumpered or absent controls or safety devices. Do not operate water heater if any external part has been under water. Immediately call a qualified service agency to inspect the appliance and to replace a...

  • Page 5

    5 liquefied petroleum gases/propane gas is heavier than air and will remain at floor level if there is a leak. Basements, crawl spaces, closets and areas below ground level will serve as pockets for accumulation of leaking gas. Before lighting, smell all around the appliance area for gas. Be sure to...

  • Page 6

    6 section ii: specifications flow rate vs temperature rise curve for everhot ® igi model series *note: the maximum flow is based upon a minimum water pressure of 30 psi max. Flow rate @ degree temperature rise model no. Max. Input rating btu/hr. Min. Input rating btu/hr. Temp rise 40 °f 60 °f 80 °f ...

  • Page 7

    7 everhot ® igi model series dimensions figure 1.

  • Page 8

    8 specifications dimensions (inches) height: 25 5/8” (65.1 cm) width: 13 25/32” (35 cm) depth: 8 13/16” (22.4 cm) outside vent connection: 5” dia. (12.7 cm) venting height: 2 21/32” (6.7 cm) above top of cabinet clearances from combustible materials: top of water heater: 6” (15.2 cm), front: 6” (15....

  • Page 9

    9 section iii: general information features the laars everhot ® igi series tankless water heater is a high output, high efficiency appliance, which heats the water continuously as hot water is being drawn for use. Unlike tank type storage water heaters, this water heater does not store hot water. Th...

  • Page 10

    10 section iv: installation instructions caution if building cold water supply has a back-flow preventer, check valve or water meter with check valve, provisions for thermal expansion of water in the hot water system must be provided. Warning this water heater must be located in an area where leakag...

  • Page 11

    11 warning unpacking inspect shipment carefully for any signs of damage. 1. All equipment is carefully manufactured, inspected and packed. 2. Any claims for damage or shortage in shipment must be filed immediately with the freight company and noted on the bill of lading. 3. Open the vent kit carton ...

  • Page 12

    12 section v: water connections warning failure to install and maintain a new, listed pressure relief valve will release the manufacturer from any claim, which might result from excessive temperature and pressures. Keep clear of the pressure relief valve discharge line outlet. The discharge may be h...

  • Page 13

    13 2. In order to service the water heater in the event the heat exchanger needs to be flushed of lime deposits, tee fittings with shut off valves and service connections to hoses should be installed. Also install a shut off valve to the hot water supply to isolate the service tee fittings. A plumbi...

  • Page 14

    14 recommended piping for a basic installation figure 2.

  • Page 15

    15 recommended piping for a circulation system figure 3.

  • Page 16

    16 recommended piping for power failure freeze protection as long as electrical power and gas are supplied to the everhot ® water heater, freeze protection is provided to the heat exchanger and piping inside the water heater with ambient temperatures as cold as -30 °f (-34°c), when protected from di...

  • Page 17

    17 recommended piping for back-up storage system for hotels, motels, and other high flow applications figure 5 note: the primary circulator for the water heating loop must be sized for 21 gpm @ 35 ft. Head..

  • Page 18

    18 pressure relief valve – keep clear of the pressure relief valve discharge line outlet. The discharge may be hot enough to cause scald injury. The water is under pressure and may splash. For protection against excessive pressure, install pressure protective equipment required by local codes, but n...

  • Page 19

    19 combination water heating and space heating applications – commercial models only commercial models may be used for space heating or combination space heating/potable water heating applications provided the following requirements and recommended piping diagrams are carefully followed. Warning the...

  • Page 20

    20 section vi: venting warning the venting system must be properly installed. Failure to properly install the vent system could result in property damage, personal injury, or death. Do not install damaged venting system components. If damage is evident then please contact the supplier where the wate...

  • Page 21

    21 vent/air intake terminal locations direct vent terminal location plan the vent system layout so that proper clearances are maintained from plumbing and wiring. Before the vent is installed, determine the vent pipe termination location as shown below in the vent terminal location illustration. Ven...

  • Page 22

    22 vent pipes serving power vented appliances are classified by building codes as “vent connectors”. Required clearances from combustible materials must be provided in accordance with information in this manual under location of water heater and clearances, and with national fuel gas code and local ...

  • Page 23

    23 if the vent termination height above the water heater exceeds 5 feet (1.5 m), then a condensate collector (available from your laars supplier) will be required within 5 feet of the vent connection of the water heater to collect condensate from the vent pipe. The condensate collector has a ¾” outs...

  • Page 24

    24 horizontal direct vent using standard vent kit components: figure 8 for installations on interior walls, venting components may be purchased from your laars supplier to extend the venting distance using extension tubes and elbows. Use the formula and venting table shown previously in this install...

  • Page 25

    25 vertical direct vent installations the everhot ® igi series water heater can also be installed to vent vertically through the roof using a vertical discharge adaptor, optional vent extension tubes, a condensate collector, a roof terminal, and a universal lead tile. In addition to the total equiva...

  • Page 26

    26 combustion blower dip switch settings for vent length compensation under 22 feet (6.7 m): to assure optimum efficiency and reduced noise levels, the combustion blower switch has two dip switch settings. Dip switch number 1 (top dip switch) is shipped from the factory set to the off position to co...

  • Page 27

    27 installation of venting system components warning refer to the laars everhot ® igi series water heater installation and operating instruction manual for details concerning vent system termination positions/clearances, allowable vent pipe lengths, and in what position dip switch #1 should be place...

  • Page 28

    28 condensate when the total vent system length is greater than 5 ft. (1,52 m), condensate will form which could damage the water heater. For vent lengths greater than 5 ft. (1,52 m), a condensate collector and trap must be installed. Recommended vent/air intake terminal position terminals should be...

  • Page 29

    29 general installation instructions joint connection figure 13 vent connections others must be firmly pressed together so that the gaskets form an airtight seal. Coping with condensation figure 14 make sure that the sockets are pointed 1° upwards in order to keep the gaskets dry. (except for the (s...

  • Page 30

    30 condensate drain every vent system should have a condensate collector unless installed with a total vent length of less than 5 ft. (1,52 m). To prevent condensate from draining back to the appliance, a condensate collector (b) and trap (c) should be installed. Attach condensate collector to the d...

  • Page 31

    31 parts & dimensions components needed for direct vent applications : figure 19 figure 20 1) horizontal discharge adapter 2) vertical discharge adapter bwc p/n 239-44506-00 bwc p/n 239-44500-00 figure 21 figure 22 3) wall discharge terminal plate 4) rubber wall length = 12” (305mm) bwc p/n 239-4684...

  • Page 32

    32 figure 26 figure 27 8) condensate collector 9) vent pipe clamp bwc p/n 239-44501-00 bwc p/n 239-44493-00 figure 28 figure 29 10) vertical discharge roof terminal 11) pitch roof flashing bwc p/n 239-44494-00 (1/12) bwc p/n 239-44502-00 (8/12) bwc p/n 239-44503-00 (6/12) bwc p/n 239-44504-00 figure...

  • Page 33

    33 installation instructions everhot horizontal discharge vent system identify the vent location figure 32 steps: - place horizontal discharge adapter on water heater - mark position on wall - or use template provided with water heater - cut hole, covering the top of the water heater to prevent debr...

  • Page 34

    34 final installation of the vent system figure 35 from the outside of the building, slide the wall discharge terminal through the vent wall passage. A supplied rubber wall plate can be installed on the exterior of the building. Slide the inner wall plate onto the terminal. If necessary apply silico...

  • Page 35

    35 horizontal vent system installation examples figure 36.

  • Page 36

    36 installation instructions everhot vertical discharge vent system figure 37 identify the vent location determine the location where the roof discharge terminal will be installed. Taking into account the angle of the roof, cut the hole with a dimension that allows the vertical discharge roof termin...

  • Page 37

    37 mounting the vent system figure 39 vent connections must be firmly pressed together so that the gaskets form an airtightseal. Secure the system with the supplied vent pipe clamp or perforated hanger iron. Note when the total vent system length is greater than 5ft. (1,52 m), condensate will form w...

  • Page 38

    38 vertical vent system installation examples figure 40

  • Page 39

    39 cut line template figure 41.

  • Page 40

    40 section vii: gas connections warning connect this water heater only to the type of gas as shown on the rating plate. Use clean black iron pipe or equivalent material approved by local codes and ordinances. (dirt and scale from the pipe can enter the gas valve and cause it to malfunction). The inl...

  • Page 41

    41 gas meter size – natural gas only be sure that the gas meter has sufficient capacity to supply the full rated gas input of the water heater as well as the requirements of all other gas fired equipment supplied by the meter. If the gas meter is too small, ask the gas company to install a larger me...

  • Page 42

    42 4. Turn power on (after completing electrical connections – refer to section viii, “electrical connections”) and fully open a hot water tap. 5. Measure the gas pressures to see that these are within the specified limits below: supply pressure: nat. Gas: min.: 6”, max.: 10.5” l.P. Gas: min.: 10”, ...

  • Page 43

    43 wiring diagram figure 42 warning do not adjust any dipswitch settings on pc boardexcept dip switch #1, if required, for vent length..

  • Page 44

    44 wiring diagram – schematic figure 43.

  • Page 45

    45 temperature controls the front panel temperature control allows the customer to set the hot water supply temperature and will display certain fault functions of the water heater if there is a malfunction. Residential models can also have the option of up to two remote temperature controls located...

  • Page 46

    46 before installing optional remote controls, determine the most convenient locations(s). When deciding on the best location for the remote controls, please consider the following items: 1. Place the controls out of reach of small children. 2. Avoid locations where the control(s) will become hot, s...

  • Page 47

    47 8. Remove the plastic cover from the pcb and electrical connections. 9. Thread the cable through the access hole at the base of the water heater and connect the wires to the control terminals on the right hand side of the pcb. Refer to the control wiring illustration at the end of this section. 1...

  • Page 48

    48 notice the default temperature setting displayed for commercial controls that will appear when the water heater is first connected to the electrical supply or in the event of a power interruption is 140 °f. In most situations, the main control on the water heater will suit the customer’s needs an...

  • Page 49

    49 section ix: operating instructions warning water heaters are heat-producing appliances. To avoid damage or injury there must be no materials stored against the water heater or direct vent system, and proper care must be taken to avoid unnecessary contact (especially by children) with the water he...

  • Page 50

    50 lighting instructions for your safety read before operating warning: if you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped with a direct ignition device, whi...

  • Page 51

    51 caution in climates where below freezing temperatures may occur, the water heater must be drained when power is off to the water heater to prevent freeze damage to the heat exchanger. Drain solenoids are recommended to prevent freeze damage during power failures in cold climate regions. Turning o...

  • Page 52

    52 2. To set the desired temperature on the control, all hot water faucets must be closed. If there are remote controls installed, press the “priority” button on the control you want to change the setting on and the yellow “priority” indicator light will glow. 3. Press the “h” or “c” button until th...

  • Page 53

    53 commercial models (see figure 49): 1. Commercial models have the control mounted on the front of water heater, which will allow the outlet water temperature to be adjusted from 96-185 °f. If a remotely located control is desired, install and wire a second control according to the instructions in ...

  • Page 54

    54 scalding figure 50 this water heater can deliver scalding temperature water at any faucet in the system. Be careful whenever using hot water to avoid scalding injury. Certain appliances such as dishwashers and automatic clothes washers may require increased temperature water. By setting the therm...

  • Page 55

    55 first aid for scalds 1. Remove all wet clothing quickly. Wet clothing retains the heat. 2. Apply cold water to burned area for 30 minutes to reduce the heat in the skin and prevent deeper burning. Never use butter, oils, or ointment to cover the burn. They may retain the heat. 3. Use a blanket to...

  • Page 56

    56 section x: maintenance warning always turn off the electrical power supply, the manual gas valve, and the manual water control valve whenever servicing this appliance. Keep the appliance area clear and free from combustible materials, gasoline, and other flammable vapors and liquids. The everhot ...

  • Page 57

    57 caution before manually operating the valve, make sure that a drain line has been attached to the valve to direct the discharge to an open drain. Failure to take this precaution could mean contact with extremely hot water passing out the valve during this checking operation. Flushing procedure fo...

  • Page 58

    58 lime scale flushing diagram figure 52 common troubleshooting comments on the operation of the everhot ® tankless water heater comment: i don’t have any hot water when i open the tap! Make sure the gas and electricity is turned on to the water heater. The remote temperature display should have the...

  • Page 59

    59 schematic diagram of internal parts figure 53.

  • Page 60

    60 section xi: parts list cabinet 1 temperature control included. Note: can purchase additional controls for remote locations..

  • Page 61

    61 internal components.

  • Page 62

    62 internal components.

  • Page 63

    63 electrical components.

  • Page 64

    64 venting components parts list number description quantity 001 casing assembly 1 002 wall fitting bracket 2 003 rubber bushing 1 004 connection reinforcement panel 1 005 heat protection plate 1 006 front panel 1 007 front panel gasket 1 008 front panel gasket – side 2 100 gas control assembly 1 10...

  • Page 65

    65 number description quantity 127 blower mounting bracket 1 128 blower gasket 1 129 blower motor 1 130 blower venturi inlet plate 1 131 bellow connecting bracket/intake duct 1 132 combustion chamber bracket 1 135 side air inlet box assembly 1 136 bellows connecting bracket/blower 1 137 bellows 1 13...

  • Page 66

    66 number description quantity 800 screw 8 801 screw 4 802 washer 4 803 screw 3 804 screw 1 805 screw 3 810 o-ring 2 811 o-ring 1 812 o-ring 1 813 o-ring 2 814 o-ring 2 815 o-ring 2 816 o-ring 1 817 o-ring 1 818 gasket 2 238-44958-00 installation and operating instructions 1 239-44509-00 temperature...

  • Page 67

    67 notes:.

  • Page 68

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