61
61
TABLE 12.1: PRESSURE SWITCH SETTINGS
MODEL
CROWN PN
APPROX. MAKE
SETTING (inches w.c.)
BREAK SETTING*
(inches w.c.)
CWD060 - CWD110
620039
1.21
1.16
CWD138 - CWD220
620040
1.40
1.35
CWD245
620041
1.45
1.40
*Settings shown are based on “plus tolerance” - actual setting may be lower.
FIGURE 12.2a: PRESSURE SWITCH CONNECTIONS
Summary of Contents for CWD060
Page 2: ...2 2...
Page 13: ...11 11 FIGURE 5 5 ALLAIR FROM OUTSIDE USING HORIZONTAL DUCTS INTO BOILER ROOM...
Page 41: ...39 39 FIGURE 8 1 BASIC PIPING FIGURE 8 2 INDIRECT WATER HEATER BOILER SIDE PIPING...
Page 42: ...40 40 FIGURE 8 3 BYPASS PIPING FIGURE 8 4 ISOLATION OF BOILER FROM SYSTEM WITH HEAT EXCHANGER...
Page 43: ...41 41 FIGURE 8 5 CHILLER PIPING...
Page 46: ...44 44 FIGURE 9 2 INTERNAL CONNECTIONS DIAGRAM...
Page 47: ...45 45 FIGURE 9 3 LADDER DIAGRAM...
Page 51: ...49 49 FIGURE 10 3 GAS VALVE FIGURE 10 4 MEASURING MANIFOLD PRESSURE...
Page 64: ...62 62 FIGURE 12 2b MEASURING PRESSURE ACROSS PRESSURE SWITCH...
Page 68: ...66 66 Notes...
Page 71: ...69 69...
Page 73: ...71 71...
Page 75: ...73 73...
Page 77: ...75 75...
Page 79: ...Notes...