Lifebreath 4TONDHW(T) - Manual (Page 37)

37
Part A - DESIGN LOAD SPECIFICATIONS
A.1 Total Heat Loss _______________Btu/h A.2 Total Heat Gain _______________Btu/h
Part B - EQUIPMENT SELECTION (Air Handler and Cooling)
AIR HANDLER:
Make: LIFEBREATH Model: ____________
B.1 Heating Output ________________________ Btu/h
(110% - 140% of A.1)
B.2 Equipment External Static Pressure ________ ins. W.C.
(from specs)
B.3 Heating Air Flow Rate ________ cfm
B.4 Circulation Fan Speed (Heating) ________ speed
B.5 Return Air Temperature ________ o F
B.6 Air Handler Temperature Rise ________ o F
[B.1
÷
(1.08 x B.3)]
B.7 Supply Air Temperature ________ o F
(B.5 + B.6)
B.8 Water Supply Rate ________ US GPM
(from specs)
B.9 Water Supply Temperature ________ o F
B.10 Water Temperature Drop ________ o F (min. 20 o F)
[B.1
÷
(500.4 x B.8)]
B.11 Water Return Temperature ________ o F
(B.9 - B.10)
COOLING EQUIPMENT:
B.12 Cooling Output ________ (Btu/h) ________ tons
(80% - 125% of A.2)
B.13 Manufacturers Flow Rate/Ton ________ (cfm/ton)
B.14 Cooling Air Flow Rate ________ cfm
B.15 Circulation Fan Speed (Cooling) _______ speed
Part C - EQUIPMENT SELECTION (Water Heater)
DOMESTIC HOT WATER REQUIREMENTS:
C.1 Minimum Storage Capacity ________ USG
(from page 38, Method A)
or
C.2 Minimum First Hour Rating ________ USG
(from page 38, Method B)
SPACE HEATING REQUIREMENTS:
C.3 Minimum Effective Water
Heater Output
________ Btu/h
(B.1 x 1.2)
SELECTED WATER HEATER:
Make: ________ Model: ________
C.4 Storage Capacity ________ USG
Note: Complete C.5 and C.6 only if C.2 was completed.
C.5 Recovery ________ USG
C.6 First Hour Rating ________ USG
(.85 x (C.4 + C.5)) (min. C.2)
C.7 Energy Factor (ef) ________
C.8 Burner Input ________ Btu/h
C.9 Recovery Efficiency ________ %
C.10 Effective Water Heater Output ________ Btu/h
(C.8 x C.9
÷
100) (min. C.3)