Question for all.Originally posted by jtalbert
To Review: HVAC-CALC 4.0 gives me:
Sensible Gain 20705
Latent Gain: 1954
Total Heat Gain: 22659
Total Heat Loss: 38163
Calc program Recommends a 2 ton system
Heat pump to be installed for AC and heat
Just talked to one of the HVAC contractors I have asked for bids and he said that the TVA here in Tennesee recommends to size system up to 125% of the sensible heat gain. That is to keep the heating element from coming on too early in the heating mode (aprox 35 dgrees) and degrading efficiancy.
Does anyone know of this recommendation? I have not read anything on the forum regarding upsizing the system tonnage according to heat losses. I would appreciate any clarification on this issue. Thank you
A 2-ton AC or HP may have 24000 BTUH total cooling capacity. But the sensible cooling capacity is only about 18000 BTUH. So should the system be sized using total cooling capacity or sensible cooling capacity?