Part Number STH025 8/12
193
PTCR
The PTCR allows current to flow through the start
winding at compressor startup. Current flow heats the
ceramic discs in the PTCR. The electrical resistance
increases with temperature and stops all except a
trickle of current flow through the start winding. The
small flow of current keeps the PTCR hot (260°F/
127°C) and the start winding out of the circuit.
The PTCR must be cooled before attempting to start
the compressor, otherwise the PTCR will heat up too
quickly and stop current flow through the start winding
before the compressor motor reaches full speed.
NOTE: If a PTCR is dropped internal damage can
occur to the ceramic PTCR discs. The ceramic disc
can chip and cause arcing which leads to PTCR
failure. Since there is no way to open the PTCR in
order to determine if the ceramic disc is chipped or
not, it must be discarded when dropped.
!
Warning
Disconnect electrical power to the entire ice
machine at the building electrical disconnect box
before proceeding.
Содержание b970 series
Страница 2: ......
Страница 28: ...28 Part Number STH025 8 12 This Page Intentionally Left Blank ...
Страница 58: ...58 Part Number STH025 8 12 This Page Intentionally Left Blank ...
Страница 210: ...210 Part Number STH025 8 12 ACCESS REMOTE RECOVERY EVACUATION CONNECTIONS ...
Страница 250: ...250 Part Number STH025 8 12 This Page Intentionally Left Blank ...
Страница 252: ...252 Part Number STH025 8 12 I0300 I0450 I0500 I0520 Self Contained Air Water cooled 1 Ph ...
Страница 253: ...Part Number STH025 8 12 253 I0320 Self Contained Air Water cooled 1 Ph ...
Страница 254: ...254 Part Number STH025 8 12 I0500 Remote Air cooled 1Ph ...
Страница 255: ...Part Number STH025 8 12 255 I0600 I0850 I1000 I1200 Self Contained Air Water cooled 1 3 Ph ...
Страница 256: ...256 Part Number STH025 8 12 I0600 I0850 I1000 Remote Condenser Air cooled 1 3 Ph ...
Страница 257: ...Part Number STH025 8 12 257 I1400 I1800 Self Contained Air Water cooled 1 3 Ph ...
Страница 258: ...258 Part Number STH025 8 12 I1400 I1800 Remote Air cooled 1 3 Ph ...
Страница 262: ...262 Part Number STH025 8 12 This Page Intentionally Left Blank ...
Страница 263: ......