Rinnai Q85SN Installation & Service Instructions Manual

High efficiency condensing gas boiler

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Page 1 Plumber or Gas Fitter. Q85SP, Q130SP WARNING! If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. - 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 neighbor’s phone. Follow the gas supplier’s instructions. - If you cannot reach your gas supplier, call the fire department. Address: 103 International Drive, Peachtree City, GA, 30269 Toll-free: 1-800-621-9419 • Fax: 678-829-1666 • www.rinnai.us These instructions to be retained by user.
Page 2 Contents of instructions These installation instructions contain important information for the safe installation, start-up and maintanance of boilers with capacities 85,000 through 205,000 BTU/hr. These installation instructions are intended for professional installers, who have the necessary knowledge and are approved for working on heating and gas systems. Subject to technical changes Changes may be made without notice to the illustrations, process steps and technical data as a result of our policy of continuous improvement.
Page 3: Table Of Contents
Content Safety and general instructions Designated use Hazard definitions Symbol definitions The following instructions must be followed Follow these instructions for the space heating water Tools, materials and additional equipment Relevant Installation, Service and User manuals Disposal Regulations and guidelines Description of the boiler Packaging and transportation Scope of delivery...
Page 4: Safety And General Instructions
Safety and general instructions Please observe these instructions in the interest of your own safety. 1.1 Designated use The boiler is designed for heating water for a central heating system and, if applicable, generating domestic hot water. The boiler is delivered with a burner controller (MCBA) pre-installed.The boiler can be fitted with a modulating outdoor reset sensor ARV12 (included with the boiler) or an On/Off thermostat or relay panel end switch (accessories).
Page 5: The Following Instructions Must Be Followed
1.4 The following instructions must be followed The boiler must only be used for its designated purpose, as described in the Installation Instructions. Each unit is fitted with a data plate. Consult the details on this plate to verify whether the boiler is compliant with its intended location, e.g.: gas type, power source and venting classification.
Page 6: Follow These Instructions For The Space Heating Water
D.I., or distilled water to soften the water to fill the heating system. – Do not use inhibitors or other additives unless approved by Rinnai for that purpose! – When frost protection of the heating system is desired, only use Rinnai-approved antifreezes, Noble Noburst Aluminum, or Rhomar RhoGard Aluminum Safe Multi- Metal.
Page 7: Regulations And Guidelines
Regulations and guidelines The installation must comply to the requirements of the authority having jurisdiction or, in the absence of such requirements, to the latest edition of the National Fuel Gas Code, ANSI Z223.1/NFPA 54. In Canada, installation must be in accordance with the requirements of CAN/CSA B149.1, Natural Gas and Propane Installation Code.
Page 8: Description Of The Boiler
Description of the boiler Room sealed boiler The Rinnai Q boiler is a room sealed, condensing and modulating central heating boiler, with an optional integrated DHW cylinder (integrated DHW on the Q175C only). The boiler retreives its com- bustion air from outside then The QxxS boiler models have the ability to control a domestic hot water indirect tank.
Page 9: Packaging And Transportation
Packaging and transportation 4.1 Scope of delivery The boiler is supplied ready for use. • Please check if the packaging is intact. • Check if all the items listed are included in the delivery. The supply kit contents: • • Boiler with casing; Template on inside of package ; •...
Page 10: Installation
Installation 5.1 Requirements for the installation room - The room where the boiler will be placed must always be frost free. DANGER - Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. - Never use or store any chlorinated detergents or halogenated hydrocarbons (e.g. in spraycans, solvents and detergents, paints, adhesives) in proximity of the boiler. - The boiler must be installed in such a way that it is protected from water (dripping, spraying, rain, etc.) during operation and service (circulator replacement, condensate trap, control replacement, etc.) - This boiler is for intended for indoor installations only. Products to avoid present in boiler room and/or around combustion air intake Spray cans containing chloro-/fluorcarbons Ammonium and/or ammonium solutions Permanent wave solutions Chlorinated waxes and/or cleaners Swimming pool chemicals based on chlorine Calcium chloride used for thawing...
Page 11: Fitting The Boiler
5.2 Fitting the boiler Remove the packaging materials. - Do not tear the packaging. Take notice of the presence of the mounting template at the inside of the carton wrapper. NOTICE - Lay the boiler on its back during unpacking. When unpacking, the casing can be removed from the boiler. This part can be kept apart during installation. It must be placed on the boiler and fixed with the screw behind the door before the boiler is started up. Turn the boiler to its side and remove the wall bracket from the back of the NOTICE boiler by removing the 2 screws. The boiler can be mounted practically to any wall with the suspension bracket and the enclosed mounting equipment.
Page 12: Dimensions
5.3 Dimensions ceiling 2" 0.4" dimensions figure 1 Boiler type Combi Solo Q85SN/Q85SP Q175SN/Q175SP Q130SN/Q130SP Q205SN/Q205SP Q175CN/Q175CP inch / mm inch / mm inch / mm Height 26.8" / 680 26.8" / 680 26.8" / 680 Width 19.7" / 500 26" / 660 39.4"...
Page 13 Connection for combustion air supply and vent system g f r c g f r c g f r c e k w boiler connections figure 2 Boiler type Combi Solo Q85SN/Q85SP Q175SN/Q175SP Q130SN/Q130SP Q205SN/Q205SP Q175CN/Q175CP Vent system / Combustion air supply 80/125mm 80/125mm 80/125mm 3/4"M-NPT 3/4"M-NPT 3/4"M-NPT Gas pipe - g 1.1"x 1"M-NPT /...
Page 14: Plumbing Kits
5.3.1 Plumbing Kits Rinnai supplies with each type of boiler a Plumbing kit. Find below the dimensions. See chapter 6.1 for additional information. (REF. 5.29) (REF. 15.82) Plumbing Kit 2 100mm Suitable for: 3.937 Q85SN / Q85SP Q130SN / Q130SP .125 1 1/4”...
Page 15: Clearances From The Boiler
5.3.2 Clearences from the boiler ceiling Min. 10" / 250mm 2" 2" 15.7" 24" service clearances to the boiler figure 5 Minimum required clearances Minimum required clearances Recommended to combustibles to non-combustibles service clearances All types All types All types inch / mm inch / mm inch / mm Top of boiler 2" / 50 2"...
Page 16: Technical Specifications
5.4 Technical specifications Q-Series Combi Q175CN Q85SN Q130SN Q175SN Q205SN Boiler type Q175CP Q85SP Q130SP Q175SP Q205SP Input Hs CH BTU/hr 175,000 85,000 130,000 175,000 205,000 Propane orifice diameter inch / mm 0.22"/ 5.7 0.16"/ 4.15 0.20"/ 5.2 0.22"/ 5.7 0.22"/ 5.7 Display indication at start-up 51.tP...
Page 17: Connecting The Boiler
Connecting the boiler The boiler has the following connection pipes; The central heating circuit pipes. These must be connected to the Plumbing Kit by means of adapter fittings. See further chapter 6.1; The gas supply pipe. It is provided with a 3/4" male thread into which the tail piece of the gas valve can be screwed.
Page 18: Plumbing Kit Installation
Plumbing Kit installation Rinnai supplies specific Plumbing Kits with each boiler type, which must be fitted directly underneath the boiler on the supply and return pipe. Use of the Rinnai boiler without the plumbing kit will result in the void of warranty.
Page 19 120V, 2 Amp. If a pump with a larger current draw is required an isolation relay must be used. See the Rinnai Boiler applications manual for further information. The extra external pump must be selected according the installation resistance and required flow.
Page 20: Safety Valve
An ASME 30 psi pressure relief valve is installed on the plumbing kit included with the boiler. 6.1.3 Low water cut off The Rinnai Q boiler has a factory installed pressure switch type Low Water Cut NOTICE Off (LWCO). Check your local codes to see if a Low Water Cut Off is required (LWCO) and if this device conforms to local code. See the Rinnai Boiler Applications Manual for further information. The Low water cut off is not serviceable. 6.2 Expansion tank An expansion tank must be part of the central heating system. The expansion tank NOTICE must be appropriate to the water content of the installation.
Page 21: Gas Connection
6.4 Gas connection Only work on gas lines if you are licensed for such work. DANGER If these instructions are not followed exactly, a fire or explosion may result causing property damage, personal injury or death. Rinnai wall mounted boilers are built to run on Natural Gas or Propane Gas. WARNING The gas type the boiler is suitable for is indicated on the packaging and on the boiler by a blue label with Natural Gas or a green label with Propane Gas and on the identification plate on the boiler. First check the identification plate on the boiler for the suitable gas type. Do not use the boiler for another type of gas than indicated on the DANGER identification plate of the boiler. This will cause improper functioning and can damage the boiler. Natural gas: refer to chapter 6.4.1 Propane gas: refer to chapter 6.4.2 6.4.1. Gas connection with natural gas The gas supply connection must comply with local regulations or, if such regulations do not exist, with the National Fuel Gas Code, ANSI Z 223.1.
Page 22: Gas Connection With Propane Gas
6.4.2 Gas connection with propane gas The gas supply connection must comply with local regulations or, if such NOTICE regulations do not exist, with the National Fuel Gas Code, ANSI Z 223.1. For Canada, the gas connection must comply with local regulations or, if such regulations do not exist, with the CAN/CSA B149.1, Natural Gas and Propane Installation Code. Pipe sizing for propane gas Contact gas supplier to size pipes, tanks, and 100% lockup gas pressure regulator. Propane Supply Pressure Requirements Adjust propane supply regulator provided by the gas supplier for 14 inches W.C. maximum pressure. Pressure required at gas valve inlet pressure port: - Maximum 14 inches W.C.
Page 23: Hot Water Supply (Combi Boiler Q175Cn/Q175Cp)
(see Dimensions 5.3, cold water pipe -k). When there is a water pressure lower than 22PSI / 1.5 bar it is advisable to NOTICE remove the inside mechanism of the flow reducing valve. Contact Rinnai for removal instructions. 6.6 Condensate drain pipe This boiler produces condensate. Condensate must be drained otherwise the boiler will not function and can cause property damage.
Page 24: Vent System And Air Supply System
If the vent system is to be enclosed, it is suggested that the design of the enclosure shall permit inspection of the vent system. The design of such enclosure shall be deemed acceptable by the installer or the local inspector. If it becomes necessary to access an enclosed vent system for service or NOTICE repairs, Rinnai is not responsible for any costs or difficulties in accessing the vent system. Warranty does not cover obtaining access to an enclosed vent system.
Page 25: Examples Vent And Air Supply Systems
6.7.2a Examples vent and air supply systems (concentric) Examples wall terminals Wall thickness for vent termination installation: Minimum: 100mm / 4” Maximum: 508mm / 20” Short termination with wall terminal Termination with wall terminal on higher level figure 10A figure 10B Examples roof terminals Short termination with roof terminal Termination with roof terminal and bends figure 11A figure 11B...
Page 26 6.7.2 b Examples vent and air supply systems (parallel) Wall thickness for vent termination installation: Examples sealed combustions Minimum: 100mm / 4” Maximum: 508mm / 20” Horizontal with parallel termination figure 12B Horizontal with concentric termination figure 12A 10" MINIMUM INSIDE EDGE TO INSIDE EDGE 12" OVER MAX.
Page 27: Installation Of The Vent System
9, chapter 6.7.6. When the boiler is installed in any of the areas listed in chapter 5.1, "Areas likely to NOTICE have contaminants" or any area exposed to the contaminants listed in chapter 5.1, then sealed combustion is required. We advise to install a vent system out of the venting system program supplied by NOTICE Rinnai (See chapter 19 Parts list Vent system). For further information about the available components of the venting and air supply system we recommend you consult Rinnai and the Installation instructions and parts list documentation. boiler conversion from concentric to parallel figure 13 A. 1. Push the 2 clips slightly outwards B. 2. Pull the concentric adaptor out of the boiler 3.
Page 28: Recommended Vent/Air Intake Terminal Position
6.7.4 Recommended vent/air intake terminal position Terminals should be positioned as to avoid products of combustion entering openings into buildings or other vents. Maintain 12” of clearance above the highest anticipated snow level or grade or, whichever is greater. Please refer to your local codes for the snow level in your area. Terminal positions figure 14 Description Canadian Installations - Direct Vent US Installations Direct Vent US Installations and non Direct Vent non Direct Vent A Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm) 12 inches (30 cm)
Page 29 The terminal should be located where dispersal of combustion products is NOTICE not impeded and with due regard for the damage or discolouration that might occur to building products in the vicinity (see fig 14 and 15). In certain weather conditions condensation may also accumulate on the outside of the air inlet pipe. Such conditions must be considered and where necessary insulation of the inlet pipe may be required. In cold and/or humid weather water vapor may condense on leaving the vent terminal. The effect of such ‘water condensation’ must be considered. The terminal must be located in a place not likely to cause a nuisance. NOTICE Use the Instructions of the Rinnai venting system for installation and service. Cellular or Foam core PVC is not permitted for use with the boiler. NOTICE Approval Codes for Installation Item Description Flue Material United States Plastic Vent and/or air PVC Schedule 40 ANSI/ASTM D1785 pipes and fittings PVC - DWV ANSI/ASTM D2665 CPVC Schedule 40 ANSI/ASTM F441...
Page 30: Dimensioning Of The Exhaust And Air Intake Duct
6.7.5 Dimensioning of the exhaust and air intake duct The wall mounted boiler must be vented and supplied with combustion and DANGER ventilation air as described in this section. Ensure the vent and air piping and the combustion air supply comply with these instructions regarding vent system, air system, and combustion air quality. Inspect finished vent and air piping thoroughly to ensure all are airtight and comply with the instructions provided and with all requirements of applicable codes. Failure to provide a properly installed vent and air system may cause severe personal injury or death. Use only the material listed in Rinnai's vent documentation for vent pipe, and WARNING fittings. Failure to comply could result in severe personal injury, death or substantial property damage. Installation must comply with local requirements and with the National Fuel Gas Code, ANSI Z223.1 for U.S installations or CSA B 149.1 for Canadian NOTICE installations. For closet and alcove installation, CPVC material, instead of PVC, must be WARNING used in a closet/alcove structure. Failure to follow this warning could result in fire, personal injury, or death. All vent pipes must be connected and properly supported, and the exhaust NOTICE must be pitched a minimum of a 1/4” inch per foot back to the boiler (to allow drainage of condensate). Please refer to the venting manufacturer's manual to see if a larger pitch is required for specific venting systems. The venting system manufacturer's required venting pitch must always be followed if larger than 1/4 inch. Combustion air piping from the outside MUST BE used. For direct vent NOTICE installations, use of combustion air from indoor rooms using louvers, plenums, or any other devices is not authorized. See the Rinnai Boiler Applications Manual for further information on venting. NOTICE...
Page 31: Combustion Air And Vent Piping Lengths
6.7.6 Combustion air and vent piping lengths. In the table below you find the maximum equivalent pipe length of the vent/air system based on 3" diameter. These lengths are for single pipe (room air), twin pipe, and concentric venting systems. 3” Max Vent equivalent length 3” Max Air equivalent length Boiler type 100 feet 100 feet Q130...
Page 32: Calculation Of Compensation Factor
8,000 9,000 9,000 10,000 Compensation factor altitude CP(A) table 11 Any application or installation above 10,000 must be reviewed by Rinnai's NOTICE Engineering group. This is to ensure the product is installed and the overall system is designed properly and that the units are commisioned properly. Not involving of Rinnai's Engineering group would result in no support of the product and no warranty. 3. Calculate the Compensation Factor Total CF(T): CF(T) = CF(V) + CF(A) The result is the setting for Parameter 73.
Page 33: Room Air System (Indoor Combustion Air)
6.7.8 Room Air System (indoor combustion air) When using indoor air, Rinnai strongly recommends the use of an indoor air filter, P/N 808000025. This boiler requires adequate combustion air for ventilation and dilution of flue gases. Failure to provide adequate combustion air can result in unit failure, fire, explosion, serious bodily injury or death. Use the following methods to ensure adequate combustion air is available for correct and safe operation of this water heater.
Page 34 Confined Space: (Small Room, Closet, Alcove, Utility Room, Etc.) A confined space is defined in the NFPA #54 as "a space whose volume is less than 50 cubic feet per 1000 Btu/hr (4.8 m3 per kW per hour) of the aggregate input rating of all appliances installed in that space."...
Page 35 Using Indoor Air For Combustion When using air from other room(s) in the building, the total volume of the room(s) must be of adequate volume (Greater than 50 cubic feet per 1000 Btu/hr). Each Combustion air opening must have at least one square inch of free area for each 1000 Btuh, but not less than 100 square inches each.
Page 36: External Hot Water Cylinders
The choice of the tank depends on the coil output. The coil output of the tank must comply with the boiler output. NOTICE For the Q85S or Q130S the minimum coil output must be 85,000 BTU/hr. This to prevent the boiler for short cycling. The Q175S and the Q205S have limited outputs with the 3 way valve kit. Both NOTICE boilers are limited to 130,000 BTU/hr for the DHW output when using the 3 way valve kit. Please take this into account when sizing the indirect hot water tank. For addtional information on piping and control of indirect tanks, please see NOTICE the Rinnai Boiler Applications Manual. For addtional information on the Rinnai 3-way valve indirect tank kit, please NOTICE see the installation manual for the kit.
Page 37: Electrical Connections
Control Tower is switched on. - No changes may be made to the wiring of the boiler; CAUTION - All connections should be designed in accordance with the applicable regulations. The Rinnai room thermostat and controls must be connected to their allocated NOTICE connections. All other types or makes of room thermostats or controls which are used must have a Volt free contact. When using an on/off thermostat or control, it is possible that an anticipating resistance must be calibrated in order to prevent too high temperature fluctuations.
Page 40: Boiler Controls
Boiler controls The boiler is provided with a fully automatic microprocessor control, called CMS Control Management System. This control simplifies operation by undertaking all major control functions. Initially when power to the unit is switched on it will remain on standby. There is no indication LED on, until one of the program buttons is pressed. The control panel display will show the relevant state.
Page 41: Explanation Of The Function Buttons
9.1 Explanation of the function buttons Boiler control panel figure 21 Only qualified personel who are trained for servicing these boilers are permitted to make alterations in the controller to calibrate the boiler to the installation. NOTICE 1. Display. See previous page for further information. 2. ON-OFF Switch This switch turns the power supply to the boiler on or off. Only turn the boiler off using this switch, when the burner is off. CAUTION 3. Central Heating program button. Switching the Central Heating on or off (LED on/off); 4. Hot Water program button.
Page 42: Starting Up: Filling And De-Aerating The Boiler And Installation
Observe the following rules of safety: All work on the unit must take place in a dry environment. Rinnai units may never be in operation without their housing, except in connection with maintenance or adjustments (see Chapter 13 and 14).
Page 43: Filling The Heating System
Make certain to check that the system fluid is correct for the glycol concentration and inhibitor level. The system should be tested at least once a year and as recommended by the producer of the glycol solution. Use only Rinnai approved inhibitors. See the Rinnai Boiler Applications Manual for NOTICE an approved list of inhibitors.
Page 44: Hot Water Supply
It can take a while before all air has disappeared from a filled installation. Especially in the first week noises may be heard which indicate the presence NOTICE of air. The automatic air vent in the boiler will remove the air, which means the water pressure can reduce during this period and therefore topping off with water will have to be done. During normal use the following messages can occur with the necessary follow up: Water pressure is too low (<10 PSI), FILL Water pressure is too low (<14.5 PSI), Water pressure is too high (>52.2 PSI), indication remains continuously visible, flashing FILL will alternate with indication if HIGH indication remains continuously...
Page 45 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 an ignition device which automatically lights the burner.
Page 46: Adjustments
In certain cases parameters have to be altered in case of : Lower supply temperature High altitude/long vent length Read through the Parameter chapter to adjust the boiler to its installation. Contact Rinnai in case of doubt. Only qualified personel who are trained for servicing these boilers are permitted NOTICE to make alterations in the controller to calibrate the boiler to the installation.
Page 47 Parameter Mode DESCRIPTION PARA FACTORY RANGE 186°F maximum supply temperature CH 68 - 176°F type of CH installation: DO NOT USE radiators with large surface areas or underfloor heating as additional heating: T max. supply 158°F K factor heating curve 1.8; gradient 10°F/min; gear differential 10°F under floor heating with radiators as additional heating: T max.
Page 48: Outdoor Reset
T1 °F return water temperature T2 load (.. x3415 = .. BTU/hr) Parameter-, Info-, Service- and Error-chapters Table 12 pump capacity * Most of the data in this table can be requested by the RS100. Most of the NOTICE adjustments which are stated in this table are unnecessary when in combina- tion with the Rinnai RS100 thermostat and will be taken care of by the RS100 itself and do not have to be adjusted. For further information regarding to the RS100 thermostat refer to the Rinnai RS100 installation manual. Outdoor reset Heat curve day Heat curve night 2.30 1.80 2.00 1.75 1.50...
Page 49: Activating Factory Settings (Green Button Function)
11.2 Activating factory settings (green button function) To activate the factory settings again please follow the next procedure (Note: all altered adjustments will be set back to the original factory settings): Select, when necessary, the technical read out; Select with the MODE-button chapter PARA; Press the STORE-button. The word "Copy"...
Page 50: Commissioning
O adjustment has OPEN to be checked and, if necessary, adjusted at the right value. Removing casing figure 22 Always check the installation of all parts through which gas flows (by bubble DANGER test using leak-search spray). During the commissioning of the boiler the Rinnai Installation, Commissioning, and Service card must be filled out.
Page 51: Testing For Gas Leaks
13.1 Testing for gas leaks Prior to start-up of the boiler you must check the external tightness of the gas supply valve and confirm this in the start-up report. Cover endangered positions before leak testing. WARNING Do not spray the leak testing agent onto cables, plugs, electrical connection lines or electronic circuit boards. Do not allow it to drip onto them either. Leaks may be caused to pipes and screw connections during commissioning DANGER and maintenance activities. Carry out a proper leak test. Only use approved leak detection agents for leak detection. Disconnect the heating system from the power supply. Check the exterior tightness of new conduit sections up to and including the direct sealing point on the gas burner fitting.
Page 52: Checking For Contamination
13.3 Checking for contamination In order to be able to check the boiler for contamination in the following running NOTICE years it is advisable to measure the maximum air displacement in the boiler when putting the boiler into operation. This value can be different with each type of boiler. In order to be able to measure this value follow the next procedure: Press the MODE-button for 5 seconds. The display will show COdE followed by an arbitrary number; Select by means of the + or the - button the code C123; Press the Store-button to confirm the code (code blinks 1 x);...
Page 53: Checking Of The Zero Pressure Control
13.4 Checking of the zero pressure control The zero pressure control is set at the factory. To measure this value you need NOTICE a difference pressure gauge with a range of +0,2 to -0,8 mbar (+0.08 to -0.001” W.C.). Follow the next procedure: Press the MODE-button for 5 seconds. The display will show COdE followed by an arbitrary number; Select by means of the + or the - button the code C123; Press the Store-button to confirm the code (code blinks 1 x); Press the MODE-button until SERV is shown;...
Page 54: Checking The O
13.5 C hecking the O percentage is factory-set. This has to be checked at commissioning, The O NOTICE maintance and faults. This can be checked by means of the following procedure: Remove the black cover of the gas valve by unscrewing the sealed screw. Put the boiler into operation and take care that it can deliver its heat; Tip: If there is no demand for heat on CH, turn the hot water tap completely open and measure the O Press the MODE-button for 5 seconds.
Page 55: Measuring The Ionization Current
13.6 Measuring the ionization current Switch off the system using the Central Heating button and the DHW button Disconnect plug socket connection probe connect measuring device series. figure Select the µA direct current range on the measuring device. The measuring device must have a resolution of at least 1 µA. Ionization test figure 28 Switch on the sytem using the Central Heating button and the DHW button.
Page 56: Maintenance
4 years or 4000 hours of operation, whichever occurs first. When doing this the circumstances of the boiler’s location must be taken into account. From this one can determine whether to deviate from this advice. Please contact Rinnai for further guidance on the frequency and service NOTICE requirements. Contact details can be found on the back page of this manual.
Page 57 14.2.1 Visual inspection for general signs of corrosion Check all gas and water pipes for signs of corrosion. Replace any pipes that are corroded. 14.2.2 Measuring the ionization current See subsection 13.6 “Measuring the ionization current”. 14.2.3 Measuring the inlet gas pressure See subsection 6.4.1 and .2 “Gas connection with natural gas" and "Gas connection with propane”.
Page 58: Maintenance Activities
14.3 Maintenance activities The fan unit and burner cassette (figure 33 to 30) (2 and 4 year maintenance) remove the electrical connection plug from the gas valve (1) and fan motor (2); loosen the nut (3) of the gas pipe under the gas valve; replace the gasket with a new one;...
Page 59 Step 3: Refitting is done in reverse order. DANGER Note that all gaskets seals completely. Make sure that during refitting the clamping rods they are put in the right position. They should be turned vertical. If the boiler should activated with clamping rods in the wrong position it will cause serious property damage, personal injury or loss of life. Clamping rods figure 38 DANGER Put the boiler into operation and check the O (see page 54). If replacement by new gaskets and burner mentioned in this chapter is not done within the service interval subscribed by Rinnai the boiler can be damaged and WARNING will cause serious property damage, personal injury or loss of life. Use only original spare parts supplied by Rinnai. If other parts will be used the boiler can be damaged and will cause serious property damage, personal injury or loss of life. Use of non-Rinnai parts will result in the void of warranty.
Page 60: Warranty
Visual inspection of the flame The burner must flame evenly over the entire surface when operating correctly. The flame must burn with a clear, blue, stable flame. Check the flame through the inspection glass in the ignition probe (fig. 39). The flame pattern should be as shown in the figures below. SATISFACTORY Ignition probe blue flame...
Page 61: Parts Of The Boiler
Parts of the boiler ATAG Q figure 40 1 heat exchanger 9 operating panel 16 combustion air supply 2 ignition unit 10 Control Tower (CMS) 17 air box 11 water filter return CH 3 fan unit 18 data plate 4 air inlet damper 12 three-way valve (Q175C) 5 gas valve 13 circulation pump...
Page 62: Blocks And Errors
Blocks and Errors 16.1 Error indication (short reference) A detected error is indicated on the display by means of blocking or error messages. A distinction should be made between these two messages due to the fact that bloc- king can be of a temporary nature, however, error messages are fixed lockings. The control will try its utmost to prevent locking and will temporarily switch off the unit by blocking it.
Page 63 The following pages describes more detailed follow up instructions for sol- NOTICE ving blockings, errors and practical circumstances. These instructions are only for by Rinnai trained installers and technicians. 16.1 Blocks An error, which has been detected, is indicated on the display by a block message. Blocks can be temporary in nature. The controller will do everything possible to prevent a system lock and temporarily switching off the boiler as a result of a block. Please see below for a summary of blocks.
Page 64 16.1.2 Block 11 maximum average T of supply and return sensor for central heating is repeatedly exceeded. Operation is normally possible for the hot water supply during the block. The pump continues to operate at minimum capacity during the block. check flow through the installation see the installation instructions for the hydraulic...
Page 65 16.1.3 Block 12 maximum average T of supply and return sensor for hot water is repeatedly exceeded. Operation is normally possible for the central heating installation during the block. The pump continues to operate at minimum capacity during the block. check flow through the boiler and DHW tank see the installation instructions for the hydraulic...
Page 66 16.1.5 Block 67 a temperature difference has been detected between the supply and return sensor whilst the burner is not in operation. After the average T has disappeared, the block will disappear. check the sensors NTC 1 and NTC 2 check the supply and return sensor for the resistance value and replace the defective sensor check the installation for any external heat...
Page 67 16.1.6 Block 85 no water flow can be detected through the controller. De-aeration cycle is started. When water flow is detected during this cycle, the de-aeration cycle is terminated and the burner is released. check the boiler pump check the installation for the presence of air; If there is a secondary pomp installed and it is not hydraulicly seperated could cause pressure differences.
Page 68 16.2 Errors A detected error is indicated on the display by an Error message. Error messages are permanent locks which can only be removed by pressing the reset key. The controller will make every possible attempt to prevent the lock. Below is a summary of the Errors.
Page 69 16.2.2 Error 01 24 Volt short-circuit disconnect voltage from the boiler and check the fuse F2 as a result of a 24 Volt short-circuit inside or outside the boiler the fuse F2 will have blown. This fuse is placed in the control unit and can be seen after the black covering cap is removed.
Page 70 16.2.3 Error 02 no flame formation check the data in Error mode boiler data during error 1 error 2 operational no temperature there is a temperature status difference between difference between 3 supply temp. supply (3) and supply (3) and 4 return temp. return (4) return (4) 5 kW burner...
Page 71 16.2.4 Error 03 control unit error software error control unit replace the control unit. The controller will automatically load the program into the new control unit. 16.2.5 Error 04 the controller has detected a program error reset the boiler the boiler automatically indicates this message if during an error read-out the voltage to the boiler is removed.
Page 72 16.2.6 Error 05 control unit error check the ribbon cable between the control unit and the display incorrect data will be detected in case of a poor connection between the control unit and the display. If necessary, replace the ribbon cable between these two components.
Page 73 16.2.7 Error 07 control unit error software error control unit check the gas valve replace the control unit. The controller will automatically load the program into the new control unit.
Page 74 16.2.8 Error 11 control unit error check the interface and the ribbon cable between the control unit and the display incorrect data will be detected in case of a poor connection between the control unit and the display or if the interface is incorrectly positioned.
Page 75 16.2.9 Error 12 short-circuit 24 Volt remove the voltage from the boiler and check fuse F2 due to the 24 volt short-circuit inside or outside the boiler, fuse F2 has blown. This fuse is positioned in the control unit and can be seen when the black covering lid has been removed.
Page 76 16.2.10 Error 13 control unit error software error control unit replace the control unit. The controller will automatically load the program into the new control unit.
Page 77 16.2.11 Error 14 Temp NTC 12K (12k /77°F) °F supply sensor T1 flow sensor ground connection return sensor T2 DHW sensor T3 outside sensor T4 flue gas sensor T5 98,000 check the data -0.4 90,000 82,000 in Error mode 74,000 10.4 66,000 58,000 boiler data during error 17.6 53,500 21.2 49,000 24.8...
Page 78 16.2.12 Error 18 Temp NTC 12K (12k /77°F) °F supply sensor T1 Signal maximum flow water temperature return sensor T2 exceeded (T > 212°F). DHW sensor T3 outside sensor T4 flue gas sensor T5 98,000 check actual flow -0.4 90,000 temperature 82,000 74,000 10.4 66,000 suddenly increase caused by completely 58,000 hydraulic shut off of the boiler (filter, 17.6...
Page 79 16.2.13 Error 19 Temp NTC 12K (12k /77°F) °F supply sensor T1 Signal maximum return water temperature return sensor T2 exceeded (T >212°F). DHW sensor T3 outside sensor T4 flue gas sensor T5 98,000 check -0.4 90,000 actual return 82,000 temperature 74,000 10.4 66,000 58,000 Increase of temperature cause by external 17.6 53,500 heating source?
Page 80 16.2.14 Error 28 no signal from the fan the fan is not spinning check fuse F3, this fuse is positioned in the control unit and can be seen once the black covering lid has been removed fuse is working and the error is repeated check the wiring to the fan and the control unit and/or the 24 volt power supply to the fan...
Page 81 16.2.15 Error 31 internal shut down of supply sensor T1 check the data in Error mode boiler data during error 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump 1 = 31 2 = 00 3 = 230 4 = xx* 5 = 00**...
Page 82 16.2.16 Error 32 shut down of return sensor T2 check the data in Error mode boiler data during error 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump 1 = 32 2 = 00 3 = xx* 4 = 230 5 = 00**...
Page 83 16.2.17 Error 36 contact for supply sensor T1 open check the data in Error mode boiler data during error 1 error 2 operational status 3 supplytemp. 4 return temp. 5 kW burner 1 = 36 6 % pump 2 = 00 3 = -22 4 = xx* 5 = 00**...
Page 84 16.2.18 Error 37 contact for return sensor T2 open check the data in Error mode boiler data during error 1 error 2 operational status 3 supply temp. 4 return temp. 5 kW burner 6 % pump 1 = 37 2 = 00 3 = xx* 4 = -22 5 = 00**...
Page 85 16.2.19 Error 41 control unit error software error control unit replace the control unit. The controller will automatically load the program into the new control unit. 16.2.20 Error 42 control unit error software error control unit replace the control unit. The controller will automatically load the program into the new control unit.
Page 86 16.2.21 Error 68 no software present control unit and display don't have a programm there are a new display and a new control unit installed at the same time. Exchange the parts and the loading will start automatically appears on the display.
Page 87: Other Errors
Other errors 17.1 Central heating but no domestic hot water central heating but no domestic hot water -Key of the DHW program is not switched on switch on DHW program on the Control Tower boiler sensor or thermostat defective replace boiler sensor or thermostat when using RS100 - check timer times for DHW program, if necessary reset - RS100 does not respond to DHW program...
Page 88 17.2 Hot water but no central heating hot water but no central heating -Key of the central heating program is not switched on switch on central heating program room thermostat (on/ off) is not giving any signal to the boiler check room thermostat RS100 with outdoor sensor (Room sensor-On) outdoor temperature is higher than 70°F,...
Page 89 17.3 Central heating installations gets hot without being requested central heating installation gets hot without being requested -Key pump program is on switch off dirt in three-port valve or three-port valve cartridge is getting jammed clean or replace expansion tank incorrectly fitted connect expansion tank between three- port valve and pump (for Combi boiler or Solo with external DHW tank this pipe connection is present as standard)
Page 90 17.4 Insufficient quantity of hot water insufficient quantity of hot water hot and cold water connection to the boiler mixed up check left = cold, right = hot incorrect flow reducing valve check for the type and for contamination, if necessary replace (Combi) and/or clean. Check the comfort synchronising valve for the correct setting in accordance with the installation instructions...
Page 91 17.5 Temperature drop of the DHW (Combi) Temperature drop of the DHW (Combi) flow reducing valve check flow reducing valve for the correct type in accordance with the installation instructions thermostatic mixing valve incorrectly set adjust (by measuring the temperature) DHW power for the boiler is set too low check PARA chapter Step No.
Page 92 17.5.1 Temperature drop of the Solo with the external DHW tank temperature drop of the Solo hot water with the DHW tank synchronising valve check the setting in accordance with the illustrated DHW tank installation instructions thermostatic mixing valve incorrectly set adjust by measuring the temperature hot water temperature too low check PARA chapter Step No.
Page 93 17.6 Radiators do not get hot enough or warming up takes too long radiators do not get hot enough or warming them up takes too long check setting of room thermostat or RS100 supply water temperature too low Check setting PARA chapter Step No. 1 and increase if necessary incorrect choice of installation PARA chapter Step No.
Page 94: Spare Parts
Spare parts...
Page 104: Parts List Vent System
81219 CPVC - FGV Concentric Vent Kit 197009 Termination Vent Screen 196051 Manufacturer Descriptions Parts # Rinnai/ Ubbink 1 Meter Sections of PP/PVC, 3”/5” 224080 90 Degree, Male x Female, PP/PVC, 3”/5” 224078 Horizontal PP Termination, 21 inch 223175 Vertical PP Termination...
Page 105: Common Venting Guidelines
Common venting guidelines Do not common vent with the vent pipe of any other boiler or appliance. However, 20 Common venting guidelines a common venting system, the common venting system is likely to be too large for proper venting of the appliances remaining connected to it. At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation:...
Page 106: Appendix A Outdoor Reset Sensor Data
Appendix A - Outoor Reset Sensor Data R 25 °C 12 kΩ R 100 ° C 950 Ω 25/85 c i f Temp [°C] [kOhm] 171.70 98.82 58.82 36.10 22.79 14.77 12.00 9.81 6.65 Temp [°C] 4.61 3.25 2.34 1.71 1.27 0.95 0.73 0.56...
Page 108 P e a c h t r e e C i t y , 3 0 2 6 9 Toll Free: (800) 621-9419 • Tel: (678) 829-1700 • Fax: (678) 829-1666 • E-mail: info@rinnai.us • Internet: www.rinnai.us E. & O. E.

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Q175s Q130sn Q205sn Q85sp Q130sp Q175sp ... Show all

Rinnai Q85SN Installation & Service Instructions Manual

1 Safety and General Instructions

2 Regulations and Guidelines

3 Description of the Boiler

4 Packaging and Transportation

5 Installation

6 Connecting the Boiler

7 External Hot Water Cylinders

8 Electrical Connections

9 Boiler Controls

10 Starting Up: Filling and De-Aerating the Boiler and Installation

11 Adjustments

12 Isolating the Boiler

13 Commissioning

14 Maintenance

15 Parts of the Boiler

16 Blocks and Errors

17 Other Errors

18 Spare Parts

19 Parts List Vent System

20 Common Venting Guidelines

Appendix A Outdoor Reset Sensor Data

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