Rinnai 37AHB User's Manual
Contents
1. Tested in accordance with ANSI ASHRAE Standard 37 Latest edition Side intake filter to be 1 20 x20 x1 typical for all models Aijirflows shown are nominal blower speeds are factory set For air Air filter pressure drop for non standard filters must not exceed 0 08 in wg delivery other than stated refer to the Air Delivery amp Performance table This product is manufactured in a facility registered by UL to ISO 9001 tt Required filter sizes shown are based on the larger of the AHRI Air File No A6887 Conditioning amp Refrigeration Institute rated cooling airflow or the heating airflow velocity of 300 ft min for throwaway type or 450 ft min for high capacity type2. 15 1 60 me ee AT OW RAREN A L 240 1 50 export models a 08 800 650 800 090 90 000 12 1200 650 1200 14 1400 1000 1600 16 1600 1200 1750 Heating Capacities Nominal heating capacities as tested with Rinnai tankless water heaters For final rated capacities refer to the Air Delivery and Performance Tables in the Operation and Installation Manual AHB45 BTU AHB60 BTU AHB75 BTU AHB90 BTU 2 00 36 400 43 00 04 900 33 300 45 100 52 900 63 900 47 700 59 700 70 400 86 600 WE 1200F _ O 1300F 140F_ _ 40 100 50 800 61 600 76 200 150 F 160 F 51 200 68 100 78 900 96 300 37AHB Series Hydronic Furnace AL B c D_ LE UNIT SIZE in mm in mm in mm in mm in mm TOP PLENUM 17 13 16 SERVICING 24 610 mm BOTTOM zero Minimum Clearance to Combustible Construction Parts 5 years Labor 1 year In order to receive full warranty coverage on the Hyrdronic Furnace when connected to any other type or brand of product other than a Rinnai tankless water heater the flow rate through the Hydronic Furnace must not exceed a maximum of 5 GPM Rinnai will repair or replace the covered product or any part or component that is defective in materials or workmanship as set forth Rinnai will pay reasonable labor charges associated with the repair or replacement of any such part or component All repair parts must be genuine Rinnai parts All repairs o
3. 37AHB Series Hydronic Furnace AHB75 FEATURES e Four models covering a range of heating capacities o 27 100 to 96 300 BT U hour e Multi position upflow downflow horizontal left horizontal right without modifications o Modifiable for side entry return air e Low flow high head pump custom designed to work with Rinnai s tankless water heaters e Integrated control board with learning algorithm e No combustion air infiltration losses when used with a Rinnai tankless water heater e Four selectable heat blower off delay times e Multi speed motors ECM e Strong 20 gauge steel cabinet o Galvanized painted o Fully insulated cabinet o Low 34 inch profile e Multi position control box e Designed for serviceability e Schrader valves to purge air from the system e Integral filter rack with filter e Fan motor with ECM technology NOTE The unit is not designed to be installed on its back or face down AHB60 Part of the Rinnai Tankless Heating System PATENT PENDING AHB45 The optimum in hydronic technology the newly designed Rinnai multi position hydronic furnaces offer a unique solution for a wide variety of small and medium sized residential and light commercial applications They are compact and ready to fit in tight spaces which may include but not limited to attics basements closets crawlspaces and utility rooms Intelligent Microprocessor Controller The 37AHB units are equipped with an
4. KA5 B7AHBOS016KA5 AHBAE SES AHBTE SE RATING AND PERFORMANCE Descriptor Typ Nominal Output Capacity BTU h t 000 GO OO 75 000 90 000 Alr Side Temperature Rise Rate in F 68 F Entering Air 150 F Entering Water eat Speed m External Static Pressure er 800 1200 1400 1600 EE B50 800 B50 1200 1000 1600 1200 1750 ELECTRICAL W HZ PH 115 60 1 Minimum Circuit Arnpacity MA BB 12 43 Max Rating of Overcurrent Protective Device MOP Calculated Maximum Fuse or CKT BKR Size po Amps EA WE pS Uapeiomer Gi LL 40 VA Primary 120 VAC Secondary 24 VAC Sante EE PCR INTEGRAL with connections for AMC system UW lamp Humidifier and electronic air cleaner CONTROLS AL or HP Dip Switch Selectable 51 Available Unit Configurations Single ar Two Stage Dip Switch Selectable 51 FS or Wb shunt Selectable 3 safety Door Switch INDOOR BLOWER MOTOR po ype BE DIRECT DRIVE MOTOR ECM tar HP SC dSSC CS S S S ____Wotar Fullload Amps JH IER ots PHAZE a CIRCULATING PUMP Wt EELER Moor Full Lead Amps Locked Rotor Amps FLA oO o oane o O o OO O OoOO A A E EKEREN HYDROWIC HEATING COIL TT Coll Construction OD coppertubes aluminum fins galvanized steel fame Bean Die PIPING CONNECTIONS QTY pType Copper Stubs O RETURN AIR FILTERS Filter Type Throwaway 12X 20X1 16 X 20X1 2022084 2 1220 1 UNIT WEIGHT Installed with water t
5. Rinnai Rinnai 37AHB Series Hydronic Furnace Optional Equipment FIELD SUPPLIED ACCESSORIES capable of interfacing with the Rinnai Hydronic Furnace Humidifier HUM Connect an auxiliary 2 5 FLA 2 5 LRA 115 VAC max Humidifier Connections are made via the HUM quick connects The humidifier output is on whenever a heating demand is being satisfied The contacts of this output are isolated to allow application of 24 VAC or 115 VAC to one terminal and the humidifier load to the other Electronic Air Cleaner EAC Connect an auxiliary Electronic Air Cleaner rating shall be max 1 0 Amp 115 VAC This output is energized whenever any of the four blower speeds are energized Connections are made via 0 250 x 0 032 male quick connect terminals labeled EAC and N3 UV Lamp Connect an auxiliary UV lamp if required rating shall be max 1 0 Amp 115 VAC This output is energized whenever any of the four blower speeds are energized Connections are made via 0 250 x 0 032 male quick connect terminals labeled UV and N2 Cooling Coil Can accomodate most brands of evaporator A coil for cooling applications Nomenclature 3 AH B 045 08 K A 5 Model __1 Ls Multi position 37AH Multi soeed Hydronic Furnace 5 Yes Series 2 No A Unit with PSC Motor Engineering Digit B Unit with ECM Technology Nominal Heating Capacity BTU h Denotes minor change Voltage Code V Ph HZ ee Cooling Heating K 1
6. intelligent microprocessor control that allows for domestic hot water priority and adapts to available hot water flow for space heating by automatically regulating the pump and fan sequence to maximize comfort Fine Tuned to Work with Rinnai Tankless Water Heaters These unique hydronic furnaces are designed to work in combination with our line of Rinnai tankless water heaters to deliver heating capacities that cover a wide spectrum of residential and light commercial heating applications When combined the units form the Rinnai Tankless Heating System the first matched tankless hydronic heating solution in the industry rr This product is manufactured in a e facility registered by UL to ISO o C US 9001 C US UL recognized LisTE component 600000060 7 2010 37AHB Series Hydronic Furnace lt CABINET 20 gauge f prepainted galvanized steel fully insulated HEAT copper tube EXCHANGER aluminum fin PUMP high head low flow integrated check valve BLOWER multi speed motor ECM ASSEMBLY CONTROL integrated BOARD microprocessor based lt FILTER THERMOSTATS FLOW SENSOR Programmable 5 2 days For domestic hot water priority both A C and heat pump versions 7 Supplied with the unit FILTER RACK and BOTTOM FILL PLATES ANTI SCALD MIXING VALVE For modification to allow side entry return airflow To maintain safe domestic hot water temperature Factory available from
7. r replacements must be performed by an individual or servicing company that is properly trained state qualified or licensed to do the type of repair 3 AHB Series Hydronic Furnace gt een Q fee S m Air N CU v dYL cul S1SZu 10 GIE HOCH HSC dwl um o60g9HYZE L dv i Ld hl i Ld nll ell Ld Ni a Gal al lalla nd ld Kk ol la id eld ld Kl Kill kl ud kanad ll lll bal 221 eee 28 28 oue pior eoor ons Jove ras z7r or roor ons ver oeri one aver vezr oze oser ree es i oc raer os ser osr on rest Te ar aan ea oret ever ozer roor oor oo ou Mar e eee rose ow oeo eL T Lut Toa Me rae oe sc ie vaa ara ae oea vie ee 806 2e6 ss6 86 ZLOL Stor sin COLL 9ZLL SrLL HIN Z 688 SZOL 60L 8911 ZeLL Szzt gpzi ozzt 96zL SLEL ae IL dv E 2 2 HIN I 3 P dvl dYL S1SZu 10 GIE HOCH dH862Y CdVL um SZ09gHYZ L dVL le a G dl P dvl IEGA Jo SIGI GIG HOCH dH869u LU QOOSOEHVZE CO OC WO O lo oO ei IEGA Jo SIGI GIG HOCH dH869u LU GPOEHVZE N40 MOTSYIV exon AODNVA dv ot so so zo vo so vo so zo vo o Ve lesen Em dS3 1NSS 1d oes jeux SLHOddNS 43174 M NHN LAY JAIS YO WOLLO8 LYVHO AYSAITAC HI TWNIINON Rinnai 37AHB Series Hydronic Furnace Specifications UNIT MODELS 97 AH B04508KA5 97 4HB06012KA5 37AHBO7514
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