Bard 2100-073 - Manual (Page 9)

10. The balance point (the outdoor temperature at which the heat pump Is
running 100% of the time and just meeting structure heat loss
requirements) is located on right side of page.
EXAMPLE: For a structure with a 70,000 Btuh with a 36UHPQA heat pump has
a balance point of 31®F. Below this theoretical balance
point, the heating load is automatically transferred between the
heat pump and the furnace by the wall thermostat to maintain the
desired temperature. This is accomplished with the Fuel Saver
Module.
70,000 S 952 1092 1231 1363 1502 1641 1780 1912 2052 2191 2323 2462 <“THKIRmCAL HEATING COST • FURNACE ONLY
946 1029 1119 1203 1286 1377 1460 1544 1627 1718 1801 1885
238 1328 1412 1495 1586 1669 1752 1836 1926 2010 2093 154
1224
1293
1432
130
?? m i^ii Í634
565 1655 173
1^25 I
)16 1606 1690 1773 1864 1947
¡
2031
1905 1996 2079
1975 2065 2149
:163
'232
2114 2205 2288 2372
53 2344 242
92 2483 2561
2511
2650
THEORETICAL HEATING
s year
COST • FURN.+ HEAT PUMP
■ALANCE POINT 31 DEG
¡ 0
11. To find annual cooling cost of heat pump, look at the bottom of page under
annual air conditioning cost. Directly under the electric rate $/KW (step
3) line, is located the annual cooling cost.
EXAMPLE: At .06 $/KW rate for electricity, the cooling cost would be
$91.00 annually.
ANNUAL AIR CONDITIONING COST WHEN COOLING LOAD IS SIZED TO HATCH COaiNG CAPACIH OF HEAT PUMP
.05 /00 . 07 . 08 , 09 .10 .12 ,14 .16
S 75(Jyi06 121 136 151 182 212 243
ACTUAL HEATHER CONDITIONS AND INDIVIDUAL USAGE PAHERN,
<--ELBCTRlC RATE S/XHH ___
<--THE0RETICAL AIR CONDITIONING COST
IHATES ONLY AND ARE PROVIDL, .
ACTUAL VALUES HAY VARY DEPENDl
A COKHON
ON
NOTE: The accuracy of the "Dual Fuel-Add-On Heat Pump Guide to
Energy Cost Savings," is directly affected by how accurately you
estimate the structure's heat loss and heat gain in step 1.
Because of uncontrollable variables, Bard Manufacturing Company is
not responsible for any variation In actual operating costs from
these theoretical estimates.
VI 1