System Checkout; Unit Start-Up - Bosch SM024 Installation, Operation And Maintenance Manual
Sm cs series
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- Installation, operation and maintenance manual (100 pages) ,
- Installation and maintenance manual (96 pages) ,
- Manual (44 pages)
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SM CS Series Heat
SYSTEM CHECKOUT
After completing the installation, and before
energizing the unit, the following system checks
should be made:
1. Verify that the supply voltage to the heat pump
is in accordance with the nameplate ratings.
2. Make sure that all electrical connections are
tight and secure.
3. Check the electrical fusing and wiring for the
correct size.
Ensure cabinet and Electrical Box are
properly grounded.
4. Verify that the low voltage wiring between the
thermostat and the unit is correct.
5. Verify that the water piping is complete and
correct.
6. Check that the water flow is correct, and
adjust if necessary.
7. Check the blower for free rotation, and that it
is secured to the shaft.
8. Verify that vibration isolation has been
provided.
9. Unit is serviceable. Be certain that all access
panels are secured in place.
Considerations:
•
Always check incoming line voltage power
supply and secondary control voltage for
adequacy. Transformer primaries are dual
tapped for 208 and 230 volts. Connect the
appropriate tap to ensure a minimum of 18
volts secondary control voltage. 24 volts is
ideal for best operation.
•
Long length thermostat and control wiring
leads may create voltage drop. Increase wire
gauge or up-size transformers may be required
to insure minimum secondary voltage supply.
•
FHP recommends the following guidelines for
wiring between a thermostat and the unit: 18
GA up to 60 foot, 16 GA up to 100 ft and 14 GA
up to 140 ft.
•
Do not apply additional controlled devices to
the control circuit power supply without
consulting the factory. Doing so may void
equipment warranties.
•
Check with all code authorities on
requirements involving condensate disposal/
over flow protection criteria.
Revised 11-13
UNIT START-UP
1. Set the thermostat to the highest setting.
2. Set the thermostat system switch to "COOL",
and the fan switch to the "AUTO" position. The
reversing valve solenoid should energize. The
compressor and fan should not run.
3. Reduce the thermostat setting approximately 5
degrees below the room temperature.
4. Verify the heat pump is operating in the cooling
mode.
5. Turn the thermostat system switch to the
"OFF" position. The unit should stop running
and the reversing valve should de energize.
6. Leave the unit off for approximately (5)
minutes to allow for system equalization.
7. Turn the thermostat to the lowest setting.
8. Set the thermostat switch to "HEAT".
9. Increase the thermostat setting approximately
5 degrees above the room temperature.
10. Verify the heat pump is operating in the heating
mode.
11. Set the thermostat to maintain the desired
space temperature.
12. Check for vibrations, leaks, etc.
System Checkout | 19
8 733 920 846 (2013/11)
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