Normal Operating Pressures
Heating & Cooling
Cooling Indoor: 80 db; 67 wb
Heating (indoor): 70°F
± 2 psi
L - Liquid S- Suction
Values provided above are for HSV match pressures; different indoor unit match, and indoor load will cause pressures to vary.
Table 7
due to differences in installations. Significant differences could mean that the system is not properly charged or that a problem exists with some component in the system. Pressures higher than those listed indicate that the system is overcharged. Pressures lower than those listed indicate that the
system is undercharged. Verify adjusted charge using the approach method.
4.Use the same digital thermometer to check liquid line temperature.
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