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8 Cards in this Set
- Front
- Back
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Minimum pressure differential for proper performance of a 4 way reversing valve? |
75-100 psi |
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What is the CoP for a heat pump? |
300% Or 3:1 |
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Are heat pumps in Canada Conventional or Non-Conventional? |
Non-conventional (Fail to heat) |
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Reversing valve when de-energized in Canada will run heating true or false? |
True O/B terminal for reversing valve |
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What temperature should the supply air be on a heat pump system while on heat mode? |
95-105F supply temp Drops to 80F supply on a cold day |
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If the reversing valve is stuck how can you get it unstuck? |
Artificially raise the dischage pressure to 125-135F SDT if that doesnt work then try switching the reversing valve from heating and cooling. |
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Balanced point. |
Heat pump balance point is the lowest outdoor temperature at which the heat pump can meet the heating demands of the building. At temperatures below the balance point auxiliary heat (gas or electric) must be used. |
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How much bigger of a heat pump can you oversize compared to a correctly sized AC system? |
Max oversize the capacity of the heat pump by 125% of the AC demands. |
