Bosch SM070 Specifications download pdf (Page 45)

Maintenance | 45SM Series Heat Pump

6 720 220 406 (2013/9)Revised 08-13

MAINTENANCE

1. Filter changes or cleanings are required at

regular intervals. The time period between

filter changes will depend upon type of

environment the equipment is used in. In a

single family home, that is not under

construction, changing or cleaning the filter

every 60 days is sufficient. In other

applications such as motels, where daily

vacuuming produces a large amount of lint,

filter changes may need to be as frequent as

biweekly.

2. An annual “checkup” is recommended by a

licensed refrigeration mechanic. Recording the

performance measurements of volts, amps,

and water temperature differences (both

heating and cooling) is recommended. This

data should be compared to the information on

the unit’s data plate and the data taken at the

original startup of the equipment.

3. Lubrication of the blower motor is not

required, however may be performed on some

motors to extend motor life. Use SAE-20 non-

detergent electric motor oil.

4. The condensate drain should be checked

annually by cleaning and flushing to insure

proper drainage.

5. Periodic lockouts almost always are caused by

air or water flow problems. The lockout

(shutdown) of the unit is a normal protective

measure in the design of the equipment. If

continual lockouts occur call a mechanic

immediately and have them check for: water

flow problems, water temperature problems,

air flow problems or air temperature problems.

Use of the pressure and temperature charts for

the unit may be required to properly determine

the cause.

Equipment should never be used during

construction due to likelihood of wall board

dust accumulation in the air coil of the

equipment which permanently affects the

performance and may shorten the life of the

equipment.

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