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37AHA SERIES

HYDRONIC AIR HANDLER

SIZES 045 THRU 090

Installation, Operation, and Maintenance Manual

Quality Assurance

This product is manufactured in a
facility registered by UL to ISO 9001.
File No. A6887.

UL recognized

component

Consumer Safety Information................................ 2

Overview of the Rinnai Hydronic Air Handler........ 3

Model Number Nomenclature ............................... 3

Physical Data......................................................... 4

Receiving & Checking Equipment ......................... 5

Installation

Clearances .................................................... 5

Locating

and

Mounting ............................... 6-9

Plumbing................................................. 10-13

Electrical

Connections............................ 14-16

Dip

Switch Options ...................................... 17

Thermostat

Installation ........................... 17-18

Start-Up

Procedure ..................................... 19

Troubleshooting...................................... 20-23

Sequence of Operation .................................. 24-26

Maintenance .................................................. 26, 27

Selection Guide ............................................. 27, 28

Specifications ...................................................... 29

Air Delivery Performance .................................... 30

Accessories ......................................................... 31

Hydronic Air Handler Output .......................... 32-34

Wiring Diagrams ............................................. 35-37

Parts List......................................................... 38-39

Limited Warranty ............................................ 40-41

2100-500

To register your hydronic air handler or tankless water heater,
please visit www.rinnairegistration.com.

Содержание 37AHA04508KA5

Страница 1: ...ing Checking Equipment 5 Installation Clearances 5 Locating and Mounting 6 9 Plumbing 10 13 Electrical Connections 14 16 Dip Switch Options 17 Thermostat Installation 17 18 Start Up Procedure 19 Troub...

Страница 2: ...be immediately available in the work area and shall be maintained in a state of readiness for instant use Read these installation instructions carefully and adhere to all WARNINGS and CAUTIONS Consult...

Страница 3: ...are not applicable the installation must comply with the national codes and any and all authorities having jurisdiction Overview of the Rinnai Hydronic Air Handler The following is a suggested list o...

Страница 4: ...355 6 18 457 2 12 304 8 10 1 2 266 7 19 482 6 37AHA06012KA5 17 1 2 444 5 18 457 2 16 406 4 16 11 16 423 9 19 1 4 489 0 37AHA07514KA5 21 533 4 18 457 2 20 508 18 11 16 474 7 19 1 2 495 3 37AHA09016KA5...

Страница 5: ...ss or damage leave all parts in original packages until installation Installation Figure 2 Minimum Clearance to Combustible Construction The 37AHA Series hydronic Air Handler needs to be installed and...

Страница 6: ...uctions on required modifications and assembly refer to Figures 3 and 4 Installation Figure 3 Modification of Unit to Accommodate Side Filter Rack Installation USE EXISTING SCREW HOLE TO LOCATE FILTER...

Страница 7: ...ready to install in the down flow position without assembly or modifications when configured for bottom return air inlet installation If side return air inlet installation is desired refer to Figures...

Страница 8: ...f the cabinet Closet return air opening can be on the front in closet door side thru the wall or a combination of both providing there is clearance on the sides between unit s cabinet and closet Refer...

Страница 9: ...ischarge side Secure the duct to the flange with proper fasteners for the type of duct used Support the duct independently Use flexible connectors if desired between the ductwork and the unit to preve...

Страница 10: ...oid debris or solder from lodging in piping system Mechanical Joining of Tubing Where used refer to respective mechanical system manufacturer s installation instructions Tubing Insulation Any tube con...

Страница 11: ...low velocity should be between 2 and 4 feet per second At water flow velocities of approximately 2 feet per second flowing water will carry air bubbles along a vertical pipe Average flow velocities of...

Страница 12: ...tubing 4 ft 9 ft 15 ft 5 ft 10 ft 3 ft 3 ft 3 ft 3 ft 3 ft 3 ft 12 ft 10 ft FS PROCEDURE FOR CALCULATING THE TOTAL EQUIVALENT LENGTH OF PIPE Given piping assembly as shown in Figure 10 below what is t...

Страница 13: ...THE SYSTEM The following procedure describes how the Rinnai system may be piped to eliminate the need for a purge cart to fill the system and remove entrapped air bubbles STEP 1 CLOSE the air separat...

Страница 14: ...connect switch to be in clear site accessible and in close proximity to the unit Correct polarity MUST be maintained for 115 V wiring If polarity is incorrect unit will NOT operate Control Box Relocat...

Страница 15: ...through 19 Installation Failure to follow this warning could result in a fire Do not use aluminum wire between the Hydronic Air Handler and the disconnect switch USE COPPER WIRE ONLY WARNING Figure 1...

Страница 16: ...nsure that unit power is turned off Wire Gauge Maximum Distance feet 20 gauge 45 18 gauge 60 16 gauge 100 14 gauge 160 12 gauge 250 System Low Voltage Wiring Diagrams NOTE Local codes may require ther...

Страница 17: ...e indoor unit Heat Pump Model The Standard Model HP thermostat is not power stealing and MUST have both R and C wires connected to operate properly This thermostat uses a green LED to indicate auxilia...

Страница 18: ...isdiction The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes WARNING THERMOSTAT WIRING DIAGRAMS Installation FIRST STAGE HEAT COOL A...

Страница 19: ...nd a call is present STEP 3 Turn thermostat on and switch system to the heating mode The thermostat shall be set higher than the actual room temperature this will cause the circulator to energize and...

Страница 20: ...manual NO YES IS LED ON WITH DOOR SWITCH CLOSED SET SYSTEM IN HEATING MODE CALL FOR HEAT YES NO START SYSTEM PURGED CHECK VOLTAGE ACROSS L1 AND L2 RETURN TO PURGE PRIME STEPS IS LED RAPIDLY FLASHING...

Страница 21: ...GO TO CIRCULATING PUMP 115 v TROUBLESHOOTING YES FINISH YES NO CHECK FOR LOOSE OR BROKEN WIRES CHECK VOLTS ACROSS FAN CONNECTIONS ON PCB COOL HI AND N4 VAC 115V NO YES PROBLEM S WITH 24V TO PCB GO TO...

Страница 22: ...ECTLY TO 115 VAC POWER SUPPLY PUMP MOTOR ENERGIZED 1 RECTIFY WIRING PROBLEM S 2 CHECK MOTOR AND CAPACITOR IF DEFECTIVE REPLACE FAULTY COMPONENT S RETURN TO START NO YES YES YES CONTACT TECH SUPPORT RE...

Страница 23: ...D SET SYSTEM IN HEATING MODE CALL FOR HEAT START IS LED ON YES NO PRI VAC 115V SEC VAC 24V YES NO GO TO AIR HANDLER START UP AND LED TROUBLESHOOTING VAC 24V YES CHECK 3 AMP FUSE IS FUSE INTACT 1 CHECK...

Страница 24: ...while a call for heat exists the cooling off delay is canceled and the blower operation reverts to the heat cycle Single Stage Heat Pump HP Cooling Demand When the thermostat calls for cooling Y and O...

Страница 25: ...peration section normal heating operation will resume Heat Blower OFF Delay When the heating thermostat demand W is removed the control de energizes the circulating pump and then de energizes the indo...

Страница 26: ...ay Blower timing begins when the thermostat is satisfied The control returns to standby when the blower off time is complete If the thermostat call for emergency heat returns before the blower off del...

Страница 27: ...closing the service valves or draining the system 3 Remove the body bolts and swing motor assembly away from the body 4 Pull cartridge out of the motor housing 5 Install replacement cartridge making...

Страница 28: ...elivery Table 4 calculate the total static pressure required From the given example note the Wet Coil Pressure Drop selected from the field supplied Evaporative Cased Coil Installation Instructions an...

Страница 29: ...Rated Load Amps Locked Rotor Amps RLA LRA 3 6 11 0 5 5 18 2 9 5 21 5 10 0 22 2 Run Capacitor mfd volts 10 370 25 370 Volts PH HZ 115 1 60 CIRCULATING PUMP Type Wet Rotor Volts PH HZ 115 1 60 Motor Ful...

Страница 30: ...1340 1260 1160 1080 37AHA07514KA5 AH75 Bottom or Right Side Return w Optional Side Filter Rack AIRFLOW CFM 2 1 2 Ton A C or HP Low 1130 1120 1100 1080 1050 1020 990 910 860 3 Ton A C or HP Medium Low...

Страница 31: ...lower mode and installer configuration settings are preserved with power off 6 Flow Sensor Refer to the plumbing section of this manual for installation instructions The sensor is packaged with the ai...

Страница 32: ...REU V2520FFUC C53i 34 6 40 6 46 2 52 3 58 3 REU V2520FFUCD C53i PLUS 34 6 40 6 46 2 52 3 58 3 REU V2532FFUC C85i 34 9 40 2 45 1 51 1 56 8 REU V2532FFUCD C85i PLUS 34 9 40 2 45 1 51 1 56 8 REU V3237WC...

Страница 33: ...2520FFUC C53i 49 6 59 3 68 5 78 3 88 4 REU V2520FFUCD C53i PLUS 49 6 59 3 68 5 78 3 88 4 REU V2532FFUC C85i 48 6 57 2 66 3 75 9 85 1 REU V2532FFUCD C85i PLUS 48 6 57 2 66 3 75 9 85 1 REU V3237WC C98e...

Страница 34: ...E O F 120 130 140 150 160 REU VA2528WD R75LSe HIGH 0 5 800 33 1 39 2 45 3 51 4 58 2 REU VA2528FFUD R75LSi 32 6 38 4 44 5 50 6 56 2 REU VA2535WD R94LSe 32 2 37 8 43 7 49 6 56 0 REU VA2535FFUD R94LSi 31...

Страница 35: ...75 C WARNING ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING DANGER Wire Identification numbers for manufacturing use 99 BLACK BLACK WHITE BLACK BLACK BLACK BLACK BLACK 4 RED WHITE RED RED...

Страница 36: ...BLK HI BLU MED HIGH ORG MED LOW RED LOW WHT COM 24V 24V COM 120V USE COPPER CONDUC TORS ONLY SUITABLE FOR AT LEAS T 75 C WARNING BLACK BLACK BLACK BLACK BLACK BLACK WHITE BLACK 26 RED WHITE 20 RED RED...

Страница 37: ...VICING DANGER BLU MED HIGH ORG MED LOW RED LOW BRN CAP BLK HI WHT COM 24V 24V COM 120V Wire Identification numbers for manufacturing use 99 BLACK BLACK BLACK BLACK BLACK BLACK WHITE RED CONTROL BOARD...

Страница 38: ...000023 X 8 609000024 Lower Front Service Door X 609000025 X 609000026 X 609000027 X 6 609000052 High Voltage Compartment Cover X X X X UNIT ASSEMBLY MODEL Balloon Number Part Number Description 37AHA...

Страница 39: ...Angle X X X X 5 605000019 1 3 HP Motor X 605000020 1 2 HP Motor X 605000021 3 4 HP Motor X 605000022 1 HP Motor X 6 609000059 Motor Mount Kit X X X X 7 608000021 Blower Wheel X 608000022 X 608000023...

Страница 40: ...ronic Air Handler Please complete the information below to keep for your records Purchased from _________________________________________________________________ Address _____________________________...

Страница 41: ...t www rinnairegistration com For those without internet access please call 1 866 RINNAI1 745 6241 Receipt of Registration by Rinnai will constitute proof of purchase for this product However Registrat...

Страница 42: ...42 Rinnai Corporation Hydronic Air Handler Manual Notes...

Страница 43: ...Rinnai Corporation Hydronic Air Handler Manual 43 Notes...

Страница 44: ...ame Oxygen Depletion Sensor Secondary Heat Source Cool to the Touch Cabinet Direct Vent Fireplace RHFE 750ETR Energy Efficient Source of Zone Heating Accurate Temperature Control Bottom Air Discharge...

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