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1. Periodic Inspections, Periodic Parts Replacement Work
(1) Gas Heat Pump Air Conditioner
A gas-fueled engine drives the compressor that is the heart of the gas heat pump air conditioner (GHP) system. The
use of a gas engine offers several advantages:
● Because there is no defrost operation, stable heating is possible even when external temperatures are low.
● As shown below, electric power consumption is relatively low (when heating with 60 Hz power source) and reduces
the load on power receiving equipment.
* Types 120, 150, 190 : 1.12 kW (approx.)
* Type 240
: 1.58 kW (approx.)
However, just like a car engine, periodic inspections by a specialized serviceperson are required to ensure trouble free
operation of the system. Make sure all periodic inspections are performed.
(2) Periodic Inspections and Their Scheduling
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Warranty Period
The equipment is covered by warranty for 1 year after completion of test run and delivery. However the engine
itself and periodically replaceable parts are covered by warranty for one year or 2,000 hours of operation (whichever
is shorter) after completion of test run and delivery.
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Inspection Menu for Periodic Inspection Contract
Since periodic inspections are necessary to ensure long-term trouble free use of the gas heat pump air conditioner
(GHP) after the warranty term ends, Sanyo has prepared the menu of inspections shown below. Please note that the
service contract for periodic inspections only includes the inspections shown in the table below. Service calls for
malfunctions will be charged separately.
Itemization and Schedule of Periodic Inspections and Periodic Parts Replacement
Remarks
Number of years passed or total hours of operation
5 years or
10,000 hours
10 years or
20,000 hours
Maintenance item
Periodic
Inspection
Periodic
Inspection
E/G oil
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Replace
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Leak check
2 E/G system
inspection
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Valve clearance adjustment
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Start-up check
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Abnormal noise, vibration check
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Harness check
3 Coolant
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Check (condition, amount), replenish
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Leak check
4
Drain filter
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Replenish, clean, oil absorption
sheets change
5
Inspect fuel
system
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Check for gas leaks
6
Inspect refrig-
eration system
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Check for gas leaks
7
Control program version check
Update as required
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Collect and record operation data
9 Periodic re
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placement
parts
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Oil filter
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Replace
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Air cleaner element
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Replace
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Spark plugs
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Replace
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Compressor drive
belt
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Replace
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Oil absorbent mat
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Replace
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Oil absorbent tube
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Replace
Note 1: “Periodic inspection” refers to 1 entire inspection of the items marked with in the table, including replacement of
periodically replaceable parts. This inspection will be performed at either 10,000 hours of operation or at 5 years,
whichever comes first.
Note 2: The periodic inspection contract is renewable as long as the parts necessary to use the equipment are available. In
this case, however, if parts that are not periodically replaceable parts must be replaced, the cost of those parts and
the expense of replacement will be charged separately.
Note 3: When the hours of operation reach 30,000 hours, Sanyo will arrange for “refresh maintenance.” This may be re
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peated for up to 13 years (if 13 years are exceeded, the equipment is replaced). Furthermore, a periodic inspection
is required either 10,000 hours of operation or 5 years after “refresh maintenance,” whichever comes first. For
details, contact the person responsible for inspecting the equipment.
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Miscellaneous
Indoor and outdoor heat exchanger cleaning is generally required once every 3 - 4 years. However, this varies ac
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cording to the level of contamination, type of industry, and installation conditions. If foreign matter or dust adheres
to indoor or outdoor heat exchanger fins, it will degrade performance and cause malfunctions. Cleaning must be
performed to ensure proper use of the air conditioner. Cleaning costs are estimated separately.
