Rinnai 25
Ducted Gas Heater OM
19.2
Service Maintenance Schedule
After the date of installation by a qualified licensed technician, the ducted gas heater should be serviced at two-year
intervals in accordance with the schedule (Table 5). Failure to do so during the product warranty period may void
the warranty. Scheduled servicing and maintenance will prolong the useful life of the unit and help keep it running
safely and at optimum efficiency.
Table 5. Service Maintenance Schedule
Date of Installation
/ /
Installed By:
YEAR OF SERVICE
2
4
6
8
10
12
Service Date
/ /
/ /
/ /
/ /
/ /
/ /
Service Company / Technician
ELECTRICAL
Wiring
Supply Air Fan Motor
Supply Air Fan Capacitor
Combustion Fan Motor (if applic)
Over Heat Switches
Printed circuit boards
HEATING ASSEMBLY
Burners and Injectors
Ignition system
Flame sensor
Thermistor Set Point
°C
°C
°C
°C
°C
°C
Gas inlet pressure - Flowing
kPa
kPa
kPa
kPa
kPa
kPa
Burner Pressure (High rate)
kPa
kPa
kPa
kPa
kPa
kPa
Burner Pressure (Low rate if
applic)
kPa
kPa
kPa
kPa
kPa
kPa
Combustion Pressure (if applic)
kPa
kPa
kPa
kPa
kPa
kPa
Condensate Pressure (if applic)
kPa
kPa
kPa
kPa
kPa
kPa
CO level
PPM
PPM
PPM
PPM
PPM
PPM
MAJOR COMPONENTS
Heat exchanger
Cabinet
Combustion air intakes
CONTROLS
Thermostat(s)
Zone Controls (If Applic)
SYSTEM OPERATION
Sequence of operation
Return Air Temp
°C
°C
°C
°C
°C
°C
Outlet Air Temp
(closest register to heater)
°C
°C
°C
°C
°C
°C
Thermistor Temp (If Applic)
°C
°C
°C
°C
°C
°C
Zone Operation (If Applic)
GENERAL INSTALLATION-RELATED AND 3rd PARTY COMPONENTS (NOT RINNAI PRODUCTS) *
Return Air grille and filters
Flue system
Ducting
Flue termination / cowl
Gas connection
Condensate drain (if applic)
Zone motors
CONSUMABLES**
Fan Capacitor
Igniter
Flame Sensor
* Installation and other field-supplied components are not covered by the product warranty. These include, but are not limited to, control wiring, ducting, return air
filter(s) grille, register, diffuser, zone motors, controls/thermostats, pipework, fabricated or added components and gas and electrical connections to the appliance.
These should be inspected as they can affect the performance, reliability and safety of the heater.
** Units contain consumable items that may require periodic replacement and are not covered by product warranty (e.g. capacitors, flame sensors, igniters, filters,
batteries)
ACTION CODES
Inspected - Working Correctly - No Action Required
Adjusted Part
Cleaned Part
Replaced Part
Repaired Part
Referred to Installer
ü
A
C
R
RP
RI