This is a sign that something is either dripping, leaking, or not draining. But don't panic, sometimes it can be a very minor problem. In the cooling mode, the indoor evaporator coil and the suction line (the large copper refrigerant line in black insulation) sweats.
DEFINITION of 'Zero-Volatility Spread-Z-spread'. The constant spread that will make the price of a security equal to the present value of its cash flows when added to the yield at each point on the spot rate Treasury curve where a cash flow is received.he Z-spread is also known as a static spread.
A Z-spread calculation is different than a nominal spread calculation. A nominal spread calculation uses one point on the Treasury yield curve (not the spot rate Treasury yield curve) to determine the spread at a single point that will equal the present value of the security's cash flows to its price.he Z-spread is also known as a static spread.