background image

LP-517 Rev. 000 Rel. 019 Date 7.21.20

32

L. Optional Flow Switch

NOTE:

 Follow the more detailed instructions included with the flow 

switch kit for proper installation steps.

1.  Attach the correct flow paddle to the flow switch.

2. Thread flow switch into the fitting provided on the manifold using 

teflon thread tape. 

Make certain the FLOW arrow points in the 

correct direction.

3. Locate the two red wires at the boiler and connect them to the flow 

switch as described in the flow switch instructions.

4. When installation is complete, power up the boiler and use the 

control to access installer parameter #20 and change the default value 

to FLOW SWITCH. When done, create a demand and observe boiler 

function to verify the installation is working properly.

NOTE: 

The flow switch requires a minimum flow rate of 21 GPM to 

activate the boiler. The sensitivity of the flow switch can be adjusted. 

See manufacturer’s instructions for details.

M. UL353 Internal Low Water Cut-Off (Factory Installed)

The supplied internal Low Water Cutoff (LWCO) meets UL 353 

requirements to function as a safety, locking out the boiler when water 

level is inadequate for safe operation.

To test, press the 

RESET

 and 

v

 buttons together for 3 - 5 seconds. The 

LWCO will trip and indicate an F21 or  F22 fault code on the display. To 

clear the error, press 

RESET

.

N. Optional High Limit Manual Reset

NOTE:

 Follow the more detailed instructions included with the high 

limit manual reset kit for proper installation steps.

1.  Thread the control well into the fitting provided on the manifold 

using teflon thread tape.

2. Insert the control probe into the control well.

3. Secure the high limit manual reset box to the control well.

4. Locate and disconnect the red high limit manual reset wires. Connect 

the two red wires to the manual reset box.

5. When installation is complete, power up the boiler and test the 

reset according to the provided instructions. If the reset operates 

properly, set the high limit temperature as described in the provided 

instructions. When done, create a demand and observe boiler function 

to verify the installation is working properly.

P. Wiring of Cascade System Communication Bus

1. A Cascade Bus Termination Plug has been installed on the customer 

connection board of this boiler. The purpose of this plug is to stabilize 

communication between multiple boilers and reduce electrical “noise”. 

See Figure 22 for Cascade Bus Termination Plug installation detail.

NOTE:

 It is important that the termination plug in multiple boilers 

(cascaded units) be installed as depicted in Figure 22. Leave the plug 

installed in the J3 port on the Master boiler. Remove the plug on 

intermediate Follower boilers. Move the plug to the J4 port on the final 

Follower boiler.

2. Use standard CAT3 or CAT5 computer network patch cables to 

connect the communication bus between each of the boilers. These 

cables are readily available at any office supply, computer, electronic, 

department or discount home supply store in varying lengths. If you 

possess the skills you can also construct custom length cables.

3. It is recommended to use the shortest length cable that will 

reach between the boilers and create a neat installation. Do not run 

unprotected cables across the floor where they may become wet or 

damaged. Avoid running communication cables parallel and close to 

or against high voltage (120 volt or greater) wiring. HTP recommends 

that the maximum length of communication bus cables not exceed 

200 feet.

4. Route the communication cables through one of the knockouts in 

the cabinet.

5. Connect the boilers in a daisy chain configuration as shown below. It 

is best to wire the boilers using the shortest wire runs rather than trying 

to wire them in the order that they are addressed. The communication 

Q. Cascade Master Pump and Sensor Wiring

1. Connect the system pump hot wire to the terminal marked 7 (SYS 

PUMP).

2. Connect the system pump neutral to the 8 (SYS NEUT) terminal 

and the pump ground wire to the 9 (SYS GND) terminal.

3. Connect the boiler pump to the terminals marked 1 (BOILER HOT), 

2 (BOILER NEUT), and 3 (BOILER GND).

4. Connect the system pipe sensor to the terminals marked 18 and 

19 (SYS SENSOR).

5. Connect the outdoor sensor (if used) to the terminals marked 12 

and 13 (OUTDOOR SEN).

6. Connect the signal to start the system to the terminals marked 14 

and 15 (THERMOSTAT).

NOTE:

 This signal can come from a room thermostat or a dry contact 

closure. No power of any voltage should be fed into either of these 

terminals.

R. Cascade Follower Pump and Sensor Wiring

1. If it is desired to have the boiler control the boiler pump, connect 

the boiler pump to the 1 (BOILER HOT), 2 (BOILER NEUT), and 3 

(BOILER GND) terminals.

2. If you are using an indirect fired water heater connected directly 

to the follower boiler, connect the pump for it to the 4 (DHW HOT), 5 

(DHW NEUT), and 6 (DHW GND) terminals.

If desired, an alarm bell or light can be connected to the alarm 

contacts of the boiler. The normally closed alarm contact may be 

used to turn a device off if the boiler goes into lockout mode. The 

alarm contacts are rated 5 amps at 120 VAC.

To connect an alarm device, connect the power for the device to 

the J10-2 (ALARM COM) terminal. Connect the alarm device hot wire 

to the J10-1 (ALARM NO) terminal. Connect the neutral or return of 

the alarm device to the neutral or return of the power for the alarm 

device.

To connect a device that should be powered off during a boiler 

lockout condition, follow the same instructions as above and use 

the J10-3 (ALARM NC) terminal rather than the ALARM NO terminal.

NOTE: 

In a cascade system, the alarm output of the boiler addressed 

as #1 will also be active if the master boiler has a lockout condition. 

The alarm output of boilers addressed #2-15 will only sound if a 

lockout condition occurs on that specific boiler.

S. Variable Speed Pumping

Variable speed pump support is available on the primary loop of 

all models manufactured after 11/15/2016. This feature controls 

pump speed via an analog 0-10VDC signal supplied via the 0-10VA 

connection on the Customer Connection Board.

When this feature is in use, an installer selected Delta T is maintained 

with the Supply and Return sensors, increasing efficiency and 

providing better system temperature control. When the difference 

between the Supply and Return temperatures is greater than 

the desired setting, the pump will increase speed and flow to 

compensate. Conversely, if the Delta T is less than the desired 

setting, the pump will decrease speed and flow to compensate.

NOTE:

 This feature may be used in Primary / Secondary piping 

arrangements ONLY!

Variable Speed Pumping Wiring:

 

1. Connect the boiler pump as shown in Figure 22 to the terminals 

marked 1 – (HOT), 2 – (NEUT), and 3 – (GND). The connections shown 

are suitable for a maximum continuous pump draw of 2 amps at 120 

volts. If the pump requires more current or voltage than the 120 volts 

supplied, an external motor starter or contactor will be required.

2. Connect the 0-10v input wires on the variable speed pump to the 

bus jacks on the customer connection panel are interchangeable so 

you can use either one or both in any order to connect the cable.

If you have connected the boilers to each other properly, there will 

be no open communication connection ports.

Summary of Contents for EnduroTI ETI-1000

Page 1: ... substantial property damage severe personal injury or death HTP reserves the right to make product changes or updates without notice and will not be held liable for typographical errors in literature NOTE TO CONSUMER PLEASE KEEP ALL INSTRUCTIONS FOR FUTURE REFERENCE 272 Duchaine Blvd New Bedford MA 02745 www htproducts com LP 517 Rev 000 Rel 019 Date 7 21 20 Improper installation adjustment alter...

Page 2: ...e Do not touch any electrical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fire department Installation and service must be provided by a qualified installer service agency or the gas supplier Improper installation adjustment alteration service or mainten...

Page 3: ...nstalled by qualified and licensed personnel The installer should be guided by the instructions furnished with the boiler and by local codes and utility company requirements In the absence of local codes preference should be given to the National Fuel Gas Code ANSI Z223 1 latest version Installations Must Comply With Local state provincial and national codes laws regulations and ordinances The lat...

Page 4: ...ce the maximum fan speed If the temperature difference exceeds 60 F the control will effectively sense there is little or no water flow or heat load and shut the boiler down The controller will restart automatically once the temperature difference has dropped below 55 F and the minimum off time anti cycle time has expired In addition if the control senses that the outlet water temperature has reac...

Page 5: ... front clearance This boiler has not been approved for installation on combustible flooring Do not install on carpeting Install the boiler in a location where temperature and pressure relief valve discharge or a leak will not result in damage to the surrounding area If such a location is not available install an auxiliary catch pan Use only Category IV vent systems Installer Read all instructions ...

Page 6: ... shipping crate of the boiler Components included with the boiler Outdoor Sensor Condensate Trap and Installation Components Three 3 Stainless Steel Screens Installation Manual and Warranty User s Information Manual CSD 1 Form H 2 Data Sheet A What s in the Box B How the Boiler Operates Condensing technology intelligently delivers highly efficient hydronic heating while maximizing efficiency by me...

Page 7: ...SET simultaneously for five 5 seconds Press RESET to clear the error code Boost Timer Function This function temporarily overrides the outdoor reset curve in order to satisfy a thermostat setpoint in a short amount of time especially during a relatively warm day Flue Temperature Modulation As an additional safety feature if the flue temperature exceeds 200oF the control will modulate the boiler do...

Page 8: ...stained temperatures below 32 o F Precautions should be taken to protect the condensate trap and drain lines from sustained freezing conditions Failure to take precautions could result in property damage severe personal injury or death 2 Check for nearby connections to System water piping Venting connections Gas supply piping Electrical power This boiler must be installed upright in the vertical p...

Page 9: ...looring but must never be installed on carpeting Installing this boiler on carpeting could result in fire property damage severe personal injury or death B Flooring Assure that the floor and structure of the installation location are sufficient to support the full installed weight of the boiler including water content of the heat exchanger and related piping Failure to ensure the floor and structu...

Page 10: ...and Closet Installations CAUTION Check with your local Authority Having Jurisdiction for requirements when installing the boiler in a garage or closet Please read the entire manual before attempting installation Failure to properly take factors such as venting piping condensate removal and wiring into account before installation could result in wasted time money and possible property damage and pe...

Page 11: ... areas where indoor air is contaminated see Table 1 When drawing combustion air from the outside into the mechanical room care must be taken to provide adequate freeze protection Failure to provide an adequate supply of fresh combustion air can cause poisonous flue gases to enter the living space resulting in severe personal injury or death To prevent combustion air contamination see Table 1 In th...

Page 12: ...the common venting system and other spaces in the building Turn on clothes dryers and any appliances not connected to the common venting system Turn Figure 5 CO Warning Label J Water Chemistry Requirements Chemical imbalance of the water supply may affect efficiency and cause severe damage to the appliance and associated equipment It is important that the water chemistry on both the domestic hot w...

Page 13: ...l appliance or operate with water containing chlorides in excess of 100 ppm mg L Using chlorinated fresh water should be acceptable as levels are typically less than 5 ppm mg L Do not connect the appliance to directly heat swimming pool or spa water Total Dissolved Solids TDS less than 500 ppm mg L Total dissolved solids are minerals salts metals and charged particles that are dissolved in water T...

Page 14: ... to ensure the waterway is clear If valve does not operate turn the boiler off and call Connect discharge piping to a safe disposal location by following these guidelines RE INSPECTIONOFRELIEFVALVES Valvesshouldbeinspected ATLEASTONCEEVERYTHREEYEARS andreplacedifnecessary by a licensed plumbing contractor or qualified service technician to ensure that the product has not been affected by corrosive...

Page 15: ...otected from water dripping spraying etc Allow clearance for basic service of the boiler circulator valves and other components Observe minimum 1 clearance around all uninsulated hot water pipes when openings around pipes are not protected by non combustible materials On a boiler installed above radiation level some states and local codes require a low water cut off device This is provided standar...

Page 16: ...25 Δt 30 Δt Model Friction Ft Flow Rate GPM Friction Ft Flow Rate GPM Friction Ft Flow Rate GPM 750 2 85 75 1 8 60 1 3 50 1000 1 85 100 1 25 80 0 8 66 6 Table 5 Temperature Rise Friction Ft and Flow Rate In addition the boiler heat exchanger has a minimum total water volume that must be taken into account when sizing the circulator Minimum boiler flow rates are listed in the table below The boiler...

Page 17: ... at least once a year to prevent lime scale buildup Follow the maintenance procedure to clean the heat exchanger in the Maintenance Section of this manual Test replace freeze protection fluid 1 Forsystemsusingfreezeprotectionfluids followfluidmanufacturer s instructions to verify inhibitor level and that other fluid characteristics are satisfactory 2 Freeze protection fluid must be replaced period...

Page 18: ...sult in a BTU output loss of 30 with a 50 increase in head against the system circulator Minimum Pipe Size Model Size 750 2 NPT 1000 2 1 2 NPT Table 7 Minimum Pipe Size It is highly recommended that you carefully follow the glycol manufacturer s recommended concentrations expansion requirements and maintenance recommendations pH additive breakdown inhibitor reduction etc Carefully figure the addit...

Page 19: ... spaced tees 5 Piping shown is Primary Secondary 6 The minimum pipe size for connecting an HTP indirect fired water heater is 1 7 The minimum pipe size for connecting a 750 boiler is 2 The minimum pipe size for connecting a 1000 boiler is 2 1 2 8 System flow Secondary Loop must be greater than the boiler s Primary Loop flow 9 Installations must comply with all local codes 10 In Massachusetts a vac...

Page 20: ...nstallations must comply with all local codes 6 Direct piping is shown VERY IMPORTANT Minimum flow rates outlined in the manual must be maintained to minimize short cycling 7 See Multiple Boiler Manifold Piping chart this manual when sizing and installing a multiple boiler system Thepipingwillnotsupporttheweightofthecirculators Refertothecirculatormanufacturer sinstructionstoproperlysupportthecirc...

Page 21: ... pipe gaskets can cause eventual gasket failure and exhaust gas leakage Ensure the exhaust vent pipe is properly beveled and seated before insertion into the flue adapter Failure to do so could result in property damage severe personal injury or death Due to the extreme flammability of most glues cements solvents and primers used to join plastic exhaust vent and intake pipes explosive solvent vapo...

Page 22: ...e must be used for near appliance piping BEFORE transitioning to the approved materials listed above DO NOT REMOVE these installed components Doing so WILL VOID appliance warranty PVC CPVC pipe and fittings of the same diameter are considered interchangeable The use of cellular core PVC ASTM F891 cellular core CPVC or Radel polyphenolsulfone in non metallic venting systems is prohibited Covering n...

Page 23: ...at may be opened Direct Vent 1 foot 3 feet 91 cm Power Vent 4 ft below or to side of opening 1 ft above opening C Clearance to permanently closed window D Vertical clearance to ventilated soffit located above the terminal within a horizontal distance 2 feet 61 cm from the center line of the terminal E Clearance to unventilated soffit F Clearance to outside corner G Clearance to inside corner H Cle...

Page 24: ...earest wall and extends level with or above the top of the wall This will ensure flue gas does not get trapped and possibly recirculated into the intake air pipe which could contaminate the combustion air 7 To prevent water leakage install adequate roof flashing where the pipe enters the roof 8 Do not locate vent over public walkways driveways or parking lots Condensate could drip and freeze resul...

Page 25: ...g and d The labels shall be black lettering that i Indicates that the piping is used for ventilation make up or combustion air intake and ii The letters shall be sized equal to a minimum of the pipe diameter However for piping with a diameter exceeding two inches said lettering does not need to be larger than two inches All vent pipes must be glued properly supported and the exhaust pitched a mini...

Page 26: ...entilation Requirements When using an indoor combustion air installation the mechanical room MUST be provided with properly sized openings and or be of sufficient volume to assure adequate combustion air and proper ventilation for all gas fired appliances in the mechanical room to assure adequate combustion air and proper ventilation The requirements shown here are for the boiler only Additional g...

Page 27: ...s flue connectors and the vent system The result is improper combustion and premature boiler failure Such failure IS NOT covered under warranty EXHAUST FANS Any fan or appliance which exhausts air from the mechanical room may deplete the combustion air supply and or cause a downdraft in the venting system Spillage of flue products from the venting system into an occupied living space can cause a v...

Page 28: ...ollection system with an internal float switch monitors condensate level to prevent it from backing up into the combustion system Condensate from the boiler is slightly acidic with a pH of 3 2 4 5 To avoid long term damage to the drainage system and to meet local code requirements HTP recommends neutralizing condensate with a Condensate Neutralizer Kit Part 7350P 611 The neutralizer kit connects t...

Page 29: ...remain on It is important to remember to turn off the condensate pump when powering down the boiler Failure to do so could result in property damage severe personal injury or death Is is very important that condensate piping be no smaller than 3 4 Use a tee at the condensate connection with a branch vertically up and open to the atmosphere to prevent a vacuum that could obstruct the flow of conden...

Page 30: ...the terminals marked 4 DHW HOT 5 DHW NEUT 6 DHW GND The connections shown are suitable for a maximum continuous pump draw of 2 amps at 120 volts If a pump requires more current or voltage than the 120 volts supplied an external motor starter or contactor will be required D Alarm Connections The control includes a dry contact alarm output This is an SPDT circuit rated at 5 amps at 120 volts This co...

Page 31: ...sets that could influence the ability of the thermostat to measure room temperature 3 If the thermostat is equipped with an anticipator and it is connected directly to the boiler the anticipator should be set at 1 amps If the thermostat is connected to other devices the anticipator should be set to match the power requirements of the device it is connected to See the instruction manual of the conn...

Page 32: ...e knockouts in the cabinet 5 Connect the boilers in a daisy chain configuration as shown below It is best to wire the boilers using the shortest wire runs rather than trying to wire them in the order that they are addressed The communication Q Cascade Master Pump and Sensor Wiring 1 Connect the system pump hot wire to the terminal marked 7 SYS PUMP 2 Connect the system pump neutral to the 8 SYS NE...

Page 33: ...onnection board Connect the positive pump input wire to J9 24 and the negative wire to J9 25 NOTE When making wiring connections ensure proper polarity or the system will not operate properly Figure 24 Cascade Termination Plug Detail Figure 25 Cascade Master and Follower Wiring ...

Page 34: ...W PUMP BOILER PUMP N J10 2 J10 3 J10 1 CR1 CR1 ALARM MAX 6 AMPS 120 VAC TOTAL USE CONTACTOR IN PLACE OF PUMP FOR GREATER DRAW X6 1 J5 5 J6 1 X11 4 J6 3 X11 2 OPTIONAL UL353 LWCO X6 6 X6 7 X6 15 X6 16 X9 1 X9 4 120V GAS VALVE BVPS X6 17 X7 4 X7 14 BLOWER L B A G B A G PWM 24V GND HALL X7 11 X7 10 X7 20 FLUE X5 15 X5 16 DUAL X7 3 X7 13 A B FLUE ECO X7 9 X7 19 MAN RESET HIGH WATER TEMP J2 8 J2 9 SYS ...

Page 35: ...or obstruction of gas flow which may affect the operation of the unit Support gas supply piping with hangers not by the boiler or its accessories The boiler gas valve and blower will not support the weight of the piping Make sure the gas piping is protected from physical damage and freezing where required Failure to follow these instructions could result in gas leakage and result in fire explosion...

Page 36: ...eter and regulator must be properlysizedforthetotalgasload Ifyouexperienceapressuredrop greater than 1 w c 87 kPa the meter regulator or gas line may be undersized or in need of service You can attach a manometer to the incoming gas drip leg after removing the cap The gas pressure must remain between 3 5 87 kPa and 14 3 5 kPa during stand by static mode and while in operating dynamic mode If an in...

Page 37: ...urface low pH or other imbalance IS NOT covered by the warranty Thoroughly clean and flush any system that has used glycol before installing the boiler Provide the customer with a material safety data sheet MSDS on the fluid used To assure extended service life it is recommended to test water quality prior to installation Listed below are some guidelines Do not use petroleum based cleaning or seal...

Page 38: ...stalling the new boiler Provide the boiler owner with a material safety data sheet MSDS on the fluid used D Fill and Test Water System Ensure the boiler is full of water before firing the burner Failure to do so will damage the boiler Such damage IS NOT covered by warranty and could result in property damage severe personal injury or death 1 Fill the system only after ensuring water chemistry meet...

Page 39: ...he boiler Such damage IS NOT covered by warranty and could result in property damage severe personal injury or death 3 Fill condensate trap with water 4 Verify electrical connections are correct and securely attached 5 Inspect exhaust vent and intake piping for signs of deterioration from corrosion physical damage or sagging Verify exhaust vent and intake piping are intact and correctly installed ...

Page 40: ...iler it sends a firing rate command to that boiler The follower boiler will respond to the command until its supply sensor temperature gets to be 5oF above the set point temperature plus the differential at which point the individual boiler will modulate on its own so as not to overheat As a result it is not uncommon to see the cascade output at maximum but individual boilers firing at less than t...

Page 41: ...e between the default display status display analog and cascade displays if they are enabled The keys are also used in programming modes to change between programmable functions It is recommended you use the Menu Maps in the back of this manual and the detailed menu instructions printed in this section to help in menu navigation UP AND DOWN ARROW KEYS v are used to navigate between the various fun...

Page 42: ...ergy from the boiler to run the pump after the set point has been achieved Please note that running the pump for a time greater than 5 minutes may cause tank energy to be released back to the heat exchanger Factory Default of 0 Minutes Range 0 10 minutes Function 7 Warm Weather Shutoff WARM WEATHER OFF 68 oF 7 When used with an outdoor sensor warm weather shut down will disable the boiler if the p...

Page 43: ...ping this option allows you to run both the CH and DHW pumps during a DHW call but the SYS pump will NOT be energized during the DHW call ENTIRE CASCADE Range ENTIRE CASCADE DHW ON LOOP ONLY MASTER SYS PMP OFF W DHW Function 26 System Freeze Protection SYS FREEZE PROT PROTECT OFF 26 NOTE This parameter is only present if the boiler is a cascade master Allows the user to set the freeze protection w...

Page 44: ...fan speed 0V Fan is Off 1 5V Minimum Fan Speed 10V Maximum Fan Speed ALARM 0V Alarm is Off 10V Alarm is On TEMPERATUR Output follows boiler temperature setting based on Table 18 System Setting Program Navigation Function 57 OA1 Offset O 10V A OUTPUT OFFSET 1 5 57 This value is added to the OFFSTATE VOLT OA1 value to determine the total voltage output required at the minimum case Factory Default 1 ...

Page 45: ...tual temperatures measured by the supply and return sensors NOTE If the boiler is configured to use a 0 10 volt input the return sensor is disabled and the second line of the display will be blank Press v once CH SET 180oF BURNER 120oF The screen displays the current central heating temperature set point on the top line NOTE This temperature set point may vary from what was set in the boiler setti...

Page 46: ... lockout fault The top line will alternate between the words FAULT HISTORY and the fault code encountered The bottom line displays the date and time the fault occurred Press v once FAULT HISTORY 2 08 28 2009 Fr 5 19A The second oldest boiler control lockout fault The top line will alternate between the words FAULT HISTORY and the actual fault encountered The bottom line will display the date and t...

Page 47: ...y the date and time that the fault occurred Press v once BLOCKING HISTORY 8 08 28 2009 Fr 5 19A The eighth oldest boiler control blocking error The top line will alternate between the words BLOCKING HISTORY and the actual blocking code encountered Press v once BLOCKING HISTORY 9 08 28 2009 Fr 5 19A The ninth oldest boiler control blocking error The top line will alternate between the words BLOCKIN...

Page 48: ...d as 6 and 7 Press v once BOILER 8 N A BOILER 9 N A This screen is not applicable Press v once Table 26 Cascade Menu C Boiler Test Mode Table 24 Combustion Settings All Models Fan Speeds Model Ignition Min Max 750 3800 3600 5200 1000 4100 3950 6400 Table 25 Fan Speeds Part 12 Troubleshooting A Boiler Error and Fault Codes If any of the sensors detect an abnormal condition or an internal component ...

Page 49: ...face Display Cascade Control Fault Codes Screen Description Possible Remedy SYS SUPPLY SENSOR E03 PUMP OFF 12 56P E03 indicates a problem with the system sensor circuit The circuit could be open or shorted Possible reasons for this error are There is no system sensor connected to the Master Boiler The system sensor is faulty There is a short circuit in the system sensor wiring possibly from a stap...

Page 50: ...y thermistor 3 Troubleshoot thermistor by following the steps in F02 FLUE SENSOR F04 PUMP ON TIME F04 indicates that the flue temperature sensor of the boiler has failed The boiler will not restart until a technician replaces the sensor and pushes RESET on the display This is a serious safety issue as indicated by the illuminated red light and the word LOCKOUT flashing on the display During this l...

Page 51: ...MP ON TIME The flame was lost 3 times while the boiler was firing during 1 demand call This is a serious safety issue as indicated by the illuminated red light and the word LOCKOUT flashing on the display The boiler will not restart until a technician determines and repairs the cause of flame loss and pushes RESET on the display During this lockout fault the pump will be on 1 Monitor gas pressure ...

Page 52: ...ystem 3 Check for leaks in the boiler and system piping and repair as necessary 4 Inspect low water cutoff probe and wiring for damage and repair and replace as necessary EXTERNALLWCO F22 PUMP ON TIME This error is generated when the External Low Water Cutoff is installed and the water level in the boiler is low When this code is displayed the boiler will not respond to a demand for heat The botto...

Page 53: ...rs if a technician is programming the control and the programming function fails The only way to recover from this error is to reprogram the control If this error occurs at any time other than when a technician is servicing the boiler the control has failed and must be replaced by a qualified technician The control must be reprogrammed If programming does not solve the problem the control must be ...

Page 54: ...g TEMPER BLOCKING PUMP ON This screen indicates a demand for heat from the DHW circuit The pump is powered on and the supply sensor temperature is too high for the boiler to ignite This occurs because the water temperature measured by the supply sensor is higher than the tank temperature ignition diff setting NOTE If there is a CH demand while this screen is displayed the screen may read TEMPER BL...

Page 55: ...he current intake air temperature If this value is much different than the current intake air check sensor resistance and wiring If resistance values are out of range replace sensor 2 If sensor is ok check combustion often a rich combustion setting elevates burner temperatures Ensure there are no blockages on either the intake or the exhaust Confirm the combustion is set to proper CO2 numbers espe...

Page 56: ... on the NIOSH website http www cdc gov niosh homepage html NIOSH approved respirators manufacturers and phone numbers are also listed on this website Wear long sleeved loose fitting clothing gloves and eye protection Apply enough water to the combustion chamber lining to prevent dust Wash potentially contaminated clothes separately from other clothing Rinse clothes washer thoroughly NIOSH stated F...

Page 57: ...seal pit and rebead with new high temperature silicon rated to at least 300oC Figure 37 Removing the Combustion Chamber Door Seal 7 Replace the old seal with a new seal identical to the removed one The seal must be a little bit longer than the door diameter in order to let the terminal sides remain compressed and ensure a tight seal Ensure the ends of the seal are covered with scotch tape to preve...

Page 58: ...leakage and potential water damage to property The condensate line must remain unobstructed allowing free flow of condensate If condensate freezes in the line or if line is obstructed in any other manner condensate can exit from the tee resulting in potential water damage to property 10 If the boiler has a condensate pump ensure the pump operates properly before considering maintenance complete Fi...

Page 59: ...REWS NUTS 10 6300P 015 VALVE FLANGE w SCREWS O RING 11 6300P 009 GAS VALVE 12 6300P 071 ADAPTER FITTING 13 6300P 017 BALL VALVE 14 6300P 020 FLEXIBLE TUBE 15 7250P 580 RELAY BOARD 16 6300P 2100 6300P 2101 CONTROL BOARD ETI 750 CONTROL BOARD ETI 1000 17 6300P 995 LOW VOLTAGE WIRE HARNESS NOT SHOWN 18 6300P 994 HIGH VOLTAGE WIRE HARNESS NOT SHOWN 19 6300P 993 BLOWER WIRE HARNESS NOT SHOWN 20 N A M8 ...

Page 60: ...EW CUSTOMER CONNECTION BOX 16 6300P 045 6300P 055 FRAME CORNER LEFT FRONT RIGHT REAR 17 6300P 047 JACKET STAVE 18 6300P 044 6300P 054 FRAME CORNER RIGHT FRONT LEFT REAR 19 7500P 002 FLUE ECO 20 6300P 023 VENT TEMPERATURE SENSOR 21 7250P 154 HOSE BARB 22 7250P 152 O RING HOSE BARB 23 7450P 280 TEMPERATURE SENSOR NOT SHOWN INSIDE UNIT 24 7450P 094 CONDENSATE KIT 25 6300P 999 PLASTIC TUBING PRESSURE ...

Page 61: ... 045 6300P 055 LEFT FRONT RIGHT REAR CORNER 2 2 6300P 044 6300P 054 RIGHT FRONT LEFT REAR CORNER 2 3 6300P 043 6300P 053 FRAME CORNER TOP FRONT 1 4 6300P 052 FRAME CORNER TOP REAR 1 7 1 E V A T S T E K C A J 7 4 0 P 0 0 3 6 5 6 6300P 042 6300P 057 FRAME CLOSING TOP RIGHT 1 7 6300P 041 6300P 056 FRAME CLOSING TOP LEFT 1 8 6300P 048 SOCKET HEAD SCREW 5 5 X 19MM 12 9 6300P 049 BUTTON HEAD CAP SCREW M...

Page 62: ...ing Verify system settings CH Setpoint CH Differential 8 Indirect Water Heater Verify safety and operation of the indirect water heater Record settings DHW Setpoint DHW Differential Notes Table 30 Installation Checklist Allowing the boiler to operate with a dirty combustion chamber will hurt operation Failure to clean the heat exchanger as needed by the installation location could result in boiler...

Page 63: ...ean probe with plumbers cloth to remove oxides Combination Ignitor and Flame Probe Check ionization in uA d7 in Status Menu in Start Up Procedures Record high fire and low fire Clean probe with plumbers cloth to remove oxides Condensate 1st Year 2nd Year 3rd Year 4th Year Neutralizer Check condensate neutralizer Replace if necessary Condensate Pipe Disconnect condensate pipe Clean out dirt Fill wi...

Page 64: ...for that replacement boiler or component s F If at the time of a request for service the Owner cannot provide a copy of the original sales receipt or the warranty registration the warranty period for the boiler shall then be deemed to have commenced thirty 30 days after the date of manufacture of the boiler and NOT the date of installation of the boiler and be covered by the unexpired portion of t...

Page 65: ...required and requested by the HTP Claims Departmentyouwillhavethirty 30 daystoprovideit Whenallrequested information is provided HTP will respond within three 3 business days The claim will be automatically closed if requested information is not provided within thirty 30 days Claims will not be reopened without HTP Warranty Supervisor approval During the claims process a product that must be repla...

Page 66: ...LP 517 Rev 000 Rel 019 Date 7 21 20 66 Maintenance Notes ...

Page 67: ...tallation Installation Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer Installation Notes IMPORTANT Customer Please only sign after the qualified installer service technician has fully reviewed the installation safety proper operation and maintenance of the system If the system has any problems please call the quali...

Reviews: