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Maintenance and Inspection
Maintenance and inspection contract
To make full use of the product functions, use the product correctly and perform maintenance and inspection
periodically. It is highly recommended that you make a maintenance and inspection contract with a qualified
installer, your dealer, or local Toshiba Carrier representative.
● To optimize your heat pump
The quality of maintenance greatly affects the life and performance of your Heat Pump. Toshiba Carrier is
ready to provide convenient, at-cost maintenance to users of our Heat Pump.
● Maintenance by trained technical specialists
Periodic door-to-door services during season and maintenance before and after season are performed by
trained technical specialists at the subscriber's expense.
● Requests and inquiries
Contact your dealer or local Toshiba Carrier representative. More information provided on request.
Prior to inspection
● Refer to "safety Precautions" on page 4.
● Make sure all relevant persons are aware before commencing work activities.
● The heat pump remote setting should be changed to "unit" and the operation should be stopped. The
electrical supply should be isolated prior to working on the heat pump(s). The lock out, tag out procedure
should be following to ensure the heat pump cannot be operated during the inspection activity.
During inspection, the appropriate signage should be displayed to make any persons in the area aware
that work is taking place.
● Set the Remote/Unit switch on the operation panel of the module to Unit to stop the operation. Also, turn
off all the circuit breakers, control circuits, fans and pump breakers in the power box before starting
inspection.
Periodic inspection items (Reference only)
Carrying out periodic inspections will minimize the chance of failure and prolong the life of the heat pump.
Note 1)
Personal protective equipment to be used for inspection
Hardhat, safety boots, safety glasses, gloves and overalls or long sleeve shirt with safety trousers.
Care should be taken when touching equipment that can still be hot to avoid the risk of burns.
Note 2)
Maintenance cycle
The following reference values assume use in normal condition without frequent starts and stops,
when the product is operating for 10 hours a day and 2,500 hours a year. If the product is used in
the following environments, it is necessary to consider shortening the maintenance cycle.
(1) Long operating time and frequent starts and stops
(2) Place with large vibration and impact
(3) Place with large variation in power supply (frequency, voltage, etc.)
(4) Place with large variation in temperature and humidity
(5) Place with poor ambient conditions (dust, salinity, machine oil, etc.)
(6) Poor water quality of sprinkler (high-EER type)
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