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21. Winter start kit
a. Shall contain a bypass device around the low pressure switch.
b. Shall be required when mechani cal cooling is required down to 25_F(--4_C).
c. Shall not be required to operate on an economizer when below an outdoor ambient of 40_F(4_C).
22. Time Guard
a. Shall prevent compressor short--cycling by provi ding a 5--minute delay (±2 minutes) before restarting a com-
pressor after shutdown for any reason.
b. One device shall be required pe r compressor.
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