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ATH15-501.0 (

Supplement to ATH15-500.10

)

August, 2021

INSTALLATION AND SERVICE MANUAL SUPPLEMENT

GAS HEAT OPTION WITH FURNACE MODEL DIGIT 11=6, 9, A, B, C, OR D

Packaged Ventilation/Dedicated Outside Air System (DOAS)

model MPR

ATH15-501.0

5H0899700001

THIS MANUAL IS THE PROPERTY OF THE OWNER. 

PLEASE BE SURE TO LEAVE IT WITH THE OWNER WHEN YOU LEAVE THE JOB. 

 

Improper installation, adjustment, alteration, 

service or maintenance can cause property 

damage, injury or death, and could cause 

exposure to substances which have been 

determined by various state agencies to cause 

cancer, birth defects or other reproductive 

harm. Read the installation, operating and 

maintenance instructions thoroughly before 

installing or servicing this equipment.

WARNING

 

FIRE OR EXPLOSION HAZARD

Failure to follow safety warnings exactly could 

result in serious injury, death or property  

damage. 
Be sure to read and understand the installation, 

operation and service instructions in this manual. 
Improper installation, adjustment, alteration, 

service or maintenance can cause serious 

injury, death or property damage.
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.

• Leave the building immediately.

•  Immediately call your gas supplier from  

a phone remote from the building.  

Follow the gas supplier’s instructions.

•  If you cannot reach your gas supplier, call 

the fire department.

Installation and service must be performed by a 

qualified installer, service agency or the gas 

supplier.

WARNING

These instructions apply only to the gas control options identified on page 3.
•  If the model MPR unit DOES NOT include the controls identified, these 

instructions are not applicable and not to be used.

•  If the model MPR unit DOES include a gas heat option with control 

identified as applicable on page 3, these instructions must be used in 

conjunction with the Installation & Service Manual, Literature  

#ATH15-500.10 that shipped with the unit.  Read those instructions 

thoroughly before installing or servicing this equipment.

STOP

Содержание Atherion MPR

Страница 1: ...adjustment alteration service or maintenance can cause serious injury death or property damage 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 Leave the building immediately Immediately call your gas...

Страница 2: ... failure the input to the appliance as indicated on the serial plate must not exceed the rated input by more than 5 4 To prevent premature heat exchanger failure check to be sure the blower has been set to deliver the proper airflow for the application Refer to the Blower Adjustments section in ATH15 500 10 5 Start up and adjustment procedures must be performed by a qualified service agency 8 When...

Страница 3: ...ased on input Highest possible turn down and more consistent efficiency are possible with this control For C and D Cabinet with rating of 800MBH and lower The unit includes two heat exchangers with control as follows indicated by Digit 11 9 One heat exchanger equipped with a single manifold with advanced Beckett modulation control and the other equipped with two stage control The second heat excha...

Страница 4: ...ress Esc and go back to e Analog Outputs shown in steps 8 11 above to test various demand points When you have completed setting and testing furnace 1 set manual position to Off The furnaces will operate for 5 minutes in this condition before the control resets Manual Relay to No and turns off the furnace If a longer run time is needed reset the Manual Relay and Manual Position to Yes to restart 1...

Страница 5: ...the combination gas control valve to the ON position Note for C and D Cabinet sized units and units equipped with split manifolds the Gas Heating Option consists of one or more heating sections that are not modulated For this step only one combination gas valve on the modulated furnace or manifold section is to be set to the ON position 2 Enable the unit controls The LED display on the furnace con...

Страница 6: ...rol will default to the previously saved settings and return to normal operating mode 8 Adjust the Low Fire Setting as follows a Press and hold Button 2 on the modulating valve until the LED light blinks red then release b With the valve now in the low fire setting mode confirm or adjust the low fire manifold pressure to be no less than the minimum shown on the furnace serial plate in the box call...

Страница 7: ...manual shut off valve to the ON position and recheck all pipe plugs for gas leaks with soap solution Clearing Furnace Control Board Error Codes 1 Error codes on the primary control board VB1285 can be viewed by pressing the UP MODE button for at least 4 seconds until the LED display changes to display Lo9 and release the button Refer to Figure 5 1 for location of buttons and LED display and Table ...

Страница 8: ...A indicates an aged flame rod A07 Alert Loss of Inducer Motor Control The Air Pressure is not modulating down at minimum inducer drive A08 Alert Air Sensor Null Pressure Check out of tolerance The Air Pressure sensor zero reading appears to be out of tolerance A11 Alert Failed Ignition Split Manifold Failed Ignition Split manifold burner retries exhausted A15 Alert Weak Flame Signal split manifold...

Страница 9: ...power cycle 7 Flashes Lockout five many flame losses in a call for heat Will reset on next call for heat or in 1 hr Display Code Description Additional Notes Steady On Green Normal Operation Amber Flame is sensed Normal operation 1 Flash Pressure switch open Inducer on Check inducer pressure switch and tubing 2 Flashes Pressure switch open Inducer off after 5 min run Check inducer pressure switch ...

Страница 10: ...alve 4 High limit control hidden behind Item 2 on 80 efficiency furnace 5 Solid state ignition control board 6 Furnace control board 7 Vent differential pressure proving switch 8 Direct spark ignitor 9 Manifold pressure tap on manifold tee 10 Flame sensor 11 Manifold piping with gas orifices 12 Condensate drain float switch 94 efficiency furnace only 13 Compartment strip heater thermostat 94 effic...

Страница 11: ...rd for right side furnace but located on left side of cabinet 6 Valve state relay to Carel controller 90 furnaces only 7 Secondary furnace control board for left side furnace 8 Direct spark ignition control board cover removed 9 Vent differential pressure proving switch 10 Direct spark ignitor behind control boards on 90 furnaces 11 Manifold tee pressure tap primary furnace only 12 Flame sensor be...

Страница 12: ...g as shown 5 Solid state ignition control board cover removed 6 Furnace control board cover removed 7 Vent differential pressure proving switch 8 Direct spark ignitor 9 Manifold pressure tap on manifold tee primary furnace only 10 Flame sensor 11 Manifold piping with gas orifices 12 Heat exchanger tube drain tray with drain line 1 3 5 7 2 4 6 8 10 11 12 9 Primary Furnace Right Side of Cabinet Seco...

Страница 13: ...ts 900 000 Btu hr and Larger 81 Eff Secondary Furnace B k Primary Furnace k Secondary Furnace A k Secondary Furnace C k j Refer to Figure 7 1 for location of furnace positions k Refer to Figure 12 1 for identification of furnace components j Refer to Figure 7 1 for location of furnace positions k Refer to Figure 12 1 for identification of furnace components GAS HEAT OPTION COMPONENT LOCATION ...

Страница 14: ...5 Solid state ignition control board 6 Furnace control board cover removed 7 Vent differential pressure proving switch 8 Direct spark ignitor 9 Manifold pressure tap on manifold tee primary furnace only 10 Flame sensor 11 Manifold piping with gas orifices 12 Heat exchanger tube drain tray with drain line 13 Cabinet strip heater 1 3 5 7 2 4 6 8 10 11 12 9 Primary Furnace Right Side of Cabinet Secon...

Страница 15: ...k Secondary Furnace C k j Refer to Figure 7 1 for location of furnace positions k For identification of furnace components refer to Figure 12 1 for the 81 efficient modules on the bottom and Figure 14 1 for the condensing modules on the top j Refer to Figure 7 1 for location of furnace positions k For identification of furnace components refer to Figure 12 1 for the 81 efficient modules on the bot...

Страница 16: ...ue Racine WI 53403 Phone 1 800 828 4328 HEAT www modinehvac com Modine Manufacturing Company 2021 As Modine Manufacturing Company has a continuous product improvement program it reserves the right to change design and specifications without notice ...

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