/' DAVID BIRCE MILLER MECHANICAL ENGINEER
1914 BRACHWAY ROAD TELEPHONE S3e-.77 JACKSONVILLE. FLORIDA 83207
June 14, 1985
Mr. Robert H. Steinbach
Historic St. Augustine Preservation Board
P.O. Box 1987
St. Augustine, FL 32084
Re: Arrivis House; Air Conditioning System
We feel that the main problem in your not being able to heat the second floor
lies in the air side of the system. Insufficient air change or air quantity
for high-ceiling rooms and probable low discharge air temperatures also con-
tribute to the problem.
Your initiative taken in reducing infiltration of cold air by sealing window
and door cracks and the addition of insulation will reduce the heating load
and will help considerably in resolving this problem.
The following are our recommendations:
1 The air outlet serving the attic drafting room should be removed and the
duct opening capped.
2 Speed up the blower meter to high speed, and enlarge the supplementary
electric heater from 15 IW to 20 KW, because of the current trend of
extreme low temperatures.
3 Upgrade the electric service so that both the heat pump compressor and
the smpplamentry electric heater can operate at the same time without
tripping the breaker.
4 Adjusting ceiling outlets for down-blow in winter. Outlets should have
separate balancing damper behind the adjustable grille blades.
5 Finally, balance air system to within 20 spread between rooms.
Please feel free to give me a call if you have any questions about any of
Very truly yours,
David Bruce Miller