Munchkin Gas-Fired Boiler INSTALLATION START-UP MAINTENANCE PARTS Models T50M / T80M 80M / 140M / 199M / 399M When installing models manufactured after July 7, 2008, you will notice additional selections on the control installer menu that will not apply to this unit. DO NOT CHANGE THESE FACTORY SETTINGS. Refer to the Control Program Reference Chart within this manual for selections that apply to this model. This manual must be used by a qualified installer/service technician.
IF THE INFORMATION IN THIS MANUAL IS NOT FOLLOWED EXACTLY, A FIRE OR EXPLOSION MAY RESULT, CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF LIFE. DO NOT STORE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER BOILER. 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 neighbor’s phone. Follow the gas supplier’s instructions.
The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels, or to important product information. DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
NOTE: The gas manifold and controls met safe lighting and other performance criteria when undergoing tests specified in ANSI Z21.10.3 – latest edition. The hydronic supply and return connections of these products are for installation in closed loop systems ONLY! Use of this product in any manner other than described in this manual may result in premature product failure, substantial property damage, severe personal injury, or death.
D. RESIDENTIAL GARAGE, CLOSET, AND ALCOVE INSTALLATIONS .................................................................................... 15 E. EXHAUST VENT AND INTAKE PIPE ....................................................................................................................................... 15 F. PREVENT COMBUSTION AIR CONTAMINATION .................................................................................................................. 16 G.
B. GAS PIPING ............................................................................................................................................................................. 51 C. CHECK INLET GAS PRESSURE ............................................................................................................................................. 52 D. GAS VALVE .....................................................................................................................................
PART 1 – GENERAL SAFETY INFORMATION A. PRECAUTIONS This boiler is for indoor installations only. Clearance to combustible materials: 0” top, bottom, sides and back. Front must have room for service, 24” recommended. (A combustible door or removable panel is acceptable front clearance.) This boiler has been approved for closet installation. Do not install this boiler directly on carpeting. Category IV vent systems only. INSTALLER – Read all instructions in this manual before installing.
Continual fresh make-up water will reduce boiler life. Mineral buildup reduces heat transfer, overheats the stainless steel heat exchanger, and causes failure. Addition of oxygen by make-up water can cause internal corrosion in system components. Leaks in the boiler or piping must be repaired at once. If you have an old system with cast iron radiators, thoroughly flush the system (without boiler connected) to remove sediment.
B. HOW THE BOILER OPERATES Modulation Condensing Technology is an intelligent system that delivers highly efficient hydronic heating, while maximizing efficiency by measuring the data parameters of your system. Stainless Steel Heat Exchanger The highly efficient and durable stainless steel heat exchanger is designed to extract the last bit of energy from flue gas before it is exhausted.
C. OPTIONAL EQUIPMENT Below is a list of optional equipment available from HTP: Indirect Tank Sensor (Part # 7250P-325) Outdoor sensor (Part # 7250P-319) 2” Stainless Steel Outside Termination Vent Kit (V500) 3” Stainless Steel Outside Termination Vent Kit (V1000) 2” PVC Concentric Vent Kit (Part # KGAVT0501CVT) 3" PVC Concentric Vent Kit (Part # KGAVT0601CVT) 3” Polypro Vent Kit (Part # 8400P-001) 3” Polypro Pipe (33’ length Part # 8400P-002, 49.5’ length Part # 8400P-003) U.L.
Condensate drain 3. Check area around boiler. Remove any combustible materials, gasoline, and other flammable liquids. Failure to keep boiler area clear and free of combustible materials, liquids, and vapors can result in substantial property damage, severe personal injury, or death. 4. Gas control system components must be protected from dripping water during operation and service. 5.
Figure 1 – Dimensions – T-50M / T-80M / 80M
Figure 2 – Dimensions - 140M / 199M / 399M
Table 1 – Specifications Before considering location, many factors need to be addressed. Piping, Venting, and Condensation Removal are just a few of the issues that need attention prior to the installation of the boiler. Please read the entire manual, as it could save time and money. B. LEVELING Figure 3 – Boiler Leveling In order for the condensate to properly flow out of the collection system, the boiler must be installed with 1/8” per foot pitch toward the back.
C. CLEARANCES FOR SERVICE ACCESS See Figure 4 for recommended service clearances. If you do not provide the minimum clearances shown, it may not be possible to service the boiler without removing it from the space. Space must be provided with combustion/ventilation air openings correctly sized for all other appliances located in the same space as the boiler. The boiler cover must be securely fastened to prevent the boiler from drawing air form the boiler room.
The boiler is rated ANSI Z21.13 Category IV (pressurized vent, likely to form condensate in the vent) and requires a special vent system designed for pressurized venting. You must also install intake piping from outdoors to the boiler flue adaptor. The resultant installation is categorized as direct vent (sealed combustion). NOTE: To prevent combustion air contamination, see Table 2. Exhaust and intake must terminate near each other and may be vented vertically through the roof or out a side wall.
deficiencies that could cause an unsafe condition. 3. If practical, close all building doors, windows and all doors between the space in which the appliance remains connected to the common venting system located and other spaces in the building. Turn on clothes dryers and any appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, at maximum speed. Do not operate a summer exhaust fan. Close all fireplace dampers. 4.
If the boiler is not vertically plumb, improper and unsatisfactory operation may occur, causing excessive condensation build-up, nuisance fault codes, and unnecessary maintenance. 3. Prior to lifting the boiler onto the wall, use the enclosed template to level and locate the 2 primary (#12 x 3" [3/16" x 3"]) round head tapping screws, leaving about 1/4" between the screw head and the wall surface to allow for access to the keyway slot located in the back of the boiler panel.
The boiler control module uses temperature sensors to provide both high limit protection and modulating temperature control. The control module also provides low water protection by sensing the water pressure. Some codes/jurisdictions may require additional external controls. B. RELIEF VALVE The relief valve must comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems (ANSI Z21.
C. SEPARATE LOW WATER CUTOFF A low water cutoff may be required by state and local codes, or by some insurance companies. A low water cutoff is also required if the boiler is installed above the piping level. Check code requirements before installing the boiler. If required: Use an electrode probe type low water cutoff designed for hydronic installations. Install in a tee on the supply piping above the boiler. Follow low water cutoff manufacturer’s instructions. D.
G. HYDRONIC PIPING WITH CIRCULATORS, ZONE VALVES, AND MULTIPLE BOILERS This boiler may function in a closed loop 15 psi system. A factory installed water pressure switch ensures adequate pressure in the system. The boiler will not operate without a minimum of 10 psi water pressure. This assures you that if the system does have a leak, the boiler will lock out (PRO on the display) before it damages the heat exchanger.
Figure 6 – Pressure Drop Graph and Temperature Rise Chart – LP-171-F NOTE: The recommended circulators are based on 1 gpm per 10,000 btu/hr with 20∆t. The chart below represents various system temperatures, respective flows and friction loss through the boiler to aid in circulator selection. I. ZONING WITH ZONE VALVES 1. Connect boiler to system as shown in 2A and 2B in Piping Details when zoning with zone valves. The primary/secondary piping shown ensures the boiler loop will have sufficient flow.
2. Connect DHW (domestic hot water) piping to indirect storage water heater as shown. J. ZONING WITH CIRCULATORS 1. Connect boiler to system when circulator zoning as shown in 2C and 2D in Piping Details when zoning with circulators. The boiler circulator cannot be used for a zone. It must supply only the boiler loop. 2. Install a separate circulator for each zone. 3. Connect DHW (domestic hot water) piping to indirect storage water boiler as shown. K. MULTIPLE BOILERS 1.
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Figure 8 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water boiler is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 9 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 10 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 11 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 12 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 13 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
PART 6 – PIPING WITH OPTIONAL VISION 1 SYSTEM (DHW PRIORITY WITH OUTDOOR RESET) A. VISION 1 SYSTEM PIPING It is important that the system piping is done correctly when using the Vision 1 System. Follow the piping diagrams 3A through 4H when piping your boiler. All general piping practices should still be maintained. B. ZONING WITH ZONE VALVES USING VISION 1 1. Connect the boiler to the system as shown in piping details 3A through 3C. 2.
D. PIPING DETAILS WITH THE VISION 1 SYSTEM Figure 14 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5.
Figure 15 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 16 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 17 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 18 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 19 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 20 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 21 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 22 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
Figure 23 NOTES: 1. This drawing is meant to demonstrate system piping concept only. Installer is responsible for all equipment and detailing required by local codes. 2. Adjust differential pressure bypass valve to eliminate any flow velocity noise when zone with highest pressure drop operates by itself. 3. The minimum pipe size for connecting an indirect water heater is 1”. 4. The minimum pipe size for connecting the unit is 1.25” and 2” for the 399. 5. Circulators are shown with isolation flanges.
PART 7 – VENTING, COMBUSTION AIR, AND CONDENSATE REMOVAL The boiler must be vented as detailed in this Venting Section. Ensure exhaust vent and intake piping complies with these instructions regarding vent system. Inspect finished exhaust vent and intake piping thoroughly to ensure all joints are well secured, airtight, and comply with all applicable code requirements, as well as with the instructions provided in this manual.
The exhaust and intake components installed with this boiler must be used for near boiler 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. Do NOT use Foam Core Pipe in any portion of the exhaust piping from this boiler. DO NOT connect PVC/CPVC to PP without an approved vent connector.
2. DETERMINE INTAKE PIPE LOCATION a. Provide 1 foot clearance from the bottom of the intake pipe and the level of maximum snow accumulation. Snow removal may be necessary to maintain clearances. b. Do not locate intake pipe in a parking area where machinery may damage the pipe. c. When venting with a two pipe system, maximum distance between exhaust vent and intake pipe is 6 feet (1.8 m). Minimum distance between exhaust vent and intake pipe on single boiler is 10” (0.255 m) center-to-center.
E. EXHAUST VENT AND INTAKE PIPE SIZING 1. The exhaust vent and intake pipe size is 2" for the T50/80, 3” for the 80/140/199M, and 4” for the 399M. 2. The total equivalent length of exhaust vent and intake pipe should not exceed 85’. a.
Figure 24 H. EXHAUST VENT AND INTAKE PIPE INSTALLATION 1. Use only solid PVC or CPVC pipe, AL29-4C Stainless Steel, or a Polypropylene vent system approved for use with Category IV appliances. FOAM CORE PIPING IS NOT APPROVED. All joints of positive pressure vent systems must be sealed completely to prevent leakage of flue products into living space. 2. Remove all burrs and debris from joints and fittings. 3. When using PVC or CPVC pipe, all joints must be properly cleaned, primed, and cemented.
10. The exhaust vent must terminate where vapors cannot make accidental contact with people or pets, or damage shrubs or plants. 11. In vacant chimney applications, install and seal a rain cap over existing chimney openings. 12. All piping must be fully supported. Use pipe hangers at a minimum of 4 foot intervals to prevent sagging of the pipe where condensate may form. 13. Do not use the boiler to support any piping. 14.
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Figure 26 – Sidewall Venting
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PART 8 – GAS PIPING Failure to follow all precautions in this section could result in fire, explosion, severe injury or death! A. GAS CONNECTION Connect the gas supply to the system following state and local plumbing codes. The gas supply shall have a maximum inlet pressure of less than 14" water column (350 mm), ½ pound pressure (3.5 kPa), and a minimum of 3.5" water column. The entire piping system, gas meter and regulator must be sized properly to prevent pressure drop greater than 0.
2. Locate and install manual shutoff valves in accordance with state and local requirements. 3. In Canada, the Manual Shutoff must be identified by the installing contractor. 4. It is important to support gas piping as the boiler is not designed to structurally support a large amount of weight. 5. Purge all gas lines thoroughly to avoid start up issues with air in the lines. 6. Sealing compound (pipe dope) must be used and approved for gas connections. Apply sparingly, and only to the male threads.
If an in-line high gas pressure regulator is used, it must be installed a minimum of 10 feet from the boiler. It is very important that the gas line is properly purged by the gas supplier or utility. Failure to properly purge the lines, or improper line sizing, will result in ignition failure. This problem is especially noticeable in NEW LP installations and empty tank situations. This situation can also occur when a utility company shuts off service to an area to provide maintenance to their lines.
PART 9 – FIELD WIRING To avoid electrical shock, turn off all power to the boiler prior to opening an electrical box within the unit. Ensure the power remains off while any wiring connections are being made. Failure to follow these instructions could result in component or product failure, serious injury, or death. Such product failure IS NOT covered by warranty. ELECTRICAL SHOCK HAZARD – Turn off electrical power supply at service entrance panel before making any electrical connections.
Figure 29
Figure 30– NOTE: A resistor is provided between Bus Lines A and B.
PART 10 – FIELD WIRING – VISION 1 OPTION Outdoor Sensor Function The user can program the desired supply temperature based on the heat transmitter (baseboard, radiant floor, air handler) that will be used in the installation. Once the outdoor sensor (light green wires) is connected to the control board, the water temperature of the boiler will adjust to run the boiler more efficiently and provide greater comfort to the living space.
Fault Code Alarm Function Connect the fault annunciator or lights to the alarm output on the boiler terminal strip and the incoming neutral line in the junction box. NOTE: The annunciator or light must be rated for 120 volt AC. A relay may be employed to use devices with ratings other than 120 volt AC. Do not tie neutrals or hot wire leads to any other wires. Go directly from the boiler controller to the circulator. Connection Specification – Wire 18 AWG maximum.
2. Freeze protection fluid must be replaced periodically due to degradation of inhibitors over time. Follow all fluid manufacturer instructions. NOTE: Boiler failure due to improper water chemistry is not covered by warranty. B. FREEZE PROTECTION (WHEN USED) NEVER use automotive or standard glycol antifreeze, or ethylene glycol made for hydronic systems.
f. One zone at a time, open the isolation valves. Allow water to run through the zone, pushing out the air. Run until no noticeable air flow is present. Close the zone isolation valves and proceed with the next zone. Follow this procedure until all zones are purged. g. Close the quick-fill water valve and purge valve and remove the hose. Open all isolation valves. Watch that system pressure rises to correct cold-fill pressure. h.
2. Verify the boiler and system are full of water and all system components are correctly set for operation. 3. Fill condensate trap with water. 4. Verify electrical connections are correct and securely attached. 5. Inspect exhaust vent and intake pipe for signs of deterioration from corrosion, physical damage or sagging. PART 12 – START-UP PROCEDURE FOR YOUR OWN SAFETY READ BEFORE OPERATING 1. This boiler does not have pilot.
differential temperature setting of the boiler. The burner will not start until the outlet water temperature reaches a temperature equal to the setting for the boiler, minus the differential EX: The boiler is set to heat at 180°F degrees and the differential is set at 30°F. The burner will not start until the outlet temperature of the system reaches 149°F degrees (180° – 30°F = 150°F). To adjust, press either {S1} (Decrease Value) or {S2} (Increase Value) Ranges 5°F to 30°F.
PART 13 – START-UP PROCEDURES WITH VISION 1 OPTION The Vision I option allows the user to have one temperature for central heating and another temperature for the SuperStor Ultra Indirect Fired Water Heater. This enables the user to increase the temperature supplied to the indirect water heater by prioritizing flow at a higher temperature than may be needed for the central heating circuits (this will require two separate circulators).
DEFAULT FUNCTION FUNCTION VALUE DESCRIPTION Interface Board Function 0 = Building Management, 1 = Enables Tekmar Modulating Control (Consult with Tekmar to assure the Tekmar Control is compatible.) Step Modulation – Regulates the burner output in 6 steps in one-minute intervals. This reduces short cycling. 18 1 1 = on, 0 = off Indirect boiler set point (flow) o 19 180 o o Temperature default = 119 to 180 20 1 Not applicable o NOTE: The maximum water temperature leaving the boiler is limited to 185 F.
Table 14 – Central Heating Curve – Factory Default PART 14 – TROUBLESHOOTING A. ERROR CODE An error code may occur in the installation of the boiler. This condition may lead to a lock out condition of the controller, which will need to be manually reset through the {S4}. These temporary codes will help the installer correct the problem before going into a lock out condition, which will require a manual reset. B. BOILER ERROR 1.
When servicing or replacing parts that are in direct contact with boiler water, be certain that: There is no pressure in the boiler. (Pull the release on the relief valve. Do not rely on the pressure gauge reading.) The boiler water is not hot. The electrical power is off. DO NOT USE THIS BOILER IF ANY PART HAS BEEN SUBMERGED IN WATER. Immediately call a qualified service technician. The boiler MUST BE replaced if it has been submerged.
Code Description F02 Interrupted or shorted supply (outlet) thermister. F03 Interrupted or shorted return (inlet) thermister. F05 Supply (outlet) temperature exceeds 230oF. F06 Return (inlet) temperature exceeds 230oF. F09 No flame detected – The boiler will make three attempts at ignition before the control goes into this lockout condition. *See spark electrode detail. F10 Loss of flame signal – The boiler will relight 4 times before the control goes into this lockout condition.
Resistance Tables OUTDOOR SENSOR (7250P-319) OUTSIDE TEMP.
Inspect the interior of the boiler jacket area; clean and vacuum if necessary. Clean the condensate trap and fill with fresh water. Check for water, gas, flue and condensate leaks. Verify flue vent piping and air inlet piping are in good condition, properly supported, and tightly sealed. Check boiler water pressure, piping and expansion tank. Check control settings. Check ignition electrode. Sand off any white oxide. Clean and reposition. Check ignition and ground wiring.
Figure 31
Figure 32
Figure 33
Figure 34
Figure 35
Figure 36
BOILER START-UP REPORT LIGHT OFF ACTIVITIES 1) Fill the Check all piping and gas connections, verify all heating system are tight Pressurize system (12-15 PSI) Add water to prime condensate hose What percentage of propylene glycol is installed in the system (0-50%) Verify near boiler piping is properly supported 2) Check gas Leak test using locally approved methods pipe (consult jurisdictional code book) Check incoming gas pressure (3.5” to 14” W.C.) What is the “drop” on light off (No more than 1” W.C.
the boiler. Installer must also inform the owner that the lack of proper care and maintenance of the boiler may result in a hazardous condition.
MAINTENANCE NOTES
HTP CUSTOMER INSTALLATION RECORD FORM The following form should be completed by the installer for you to keep as a record of the installation in case of a warranty claim. After reading the important notes at the bottom of the page, please also sign this document.
