32
MUA-SVX006B-EN
tighten set screw and replace belt(s). Adjust belt tension to give 1⁄2 inch to 3⁄4 inch belt play when
depressed.
NNOOTTIICCEE
BBlloowweerr MMoottoorr FFaaiilluurree!!
FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn iimmpprrooppeerr uunniitt ooppeerraattiioonn aanndd mmoottoorr
ffaaiilluurree..
BBlloowweerr mmoottoorr ffuullll llooaadd aammppss sshhoouulldd nneevveerr bbee eexxcceeeeddeedd.. RReeffeerr ttoo mmoottoorr ddaattaa ppllaattee ffoorr
mmaaxxiimmuumm ffuullll llooaadd aammppss..
After changing blower RPM, confirm blower motor full load amps have not been exceeded. See
motor data plate for maximum full load amps.
Lighting
NNoottee:: Refer to Separated Combustion Indoor Duct Furnace Manual for all heating functions -
general comments are as follows.
Purge the gas line to the unit of air before attempting to light the pilot. Check for gas leaks.
WWAARRNNIINNGG
EExxpplloossiioonn HHaazzaarrdd!!
FFaaiilluurree ttoo ffoollllooww ssaaffee lleeaakk tteesstt pprroocceedduurreess bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr
eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy--ddaammaaggee..
NNeevveerr uussee aann ooppeenn ffllaammee ttoo ddeetteecctt ggaass lleeaakkss.. UUssee aa lleeaakk tteesstt ssoolluuttiioonn ffoorr lleeaakk tteessttiinngg..
This unit is equipped with an intermittent ignition system. A lighting instruction is attached to the
unit. To set the intermittent ignition system into operation proceed as follows:
1. Turn on the gas valve(s) main manual valve.
2. Turn on electrical power. The unit is now under thermostat control.
3. Set thermostat to highest level. This will initiate the sequence of operation detailed in the Gas
Control System section. Check main burners for operation.
4. Set thermostat to lowest level. This will interrupt power to the ignition control and shut off
gas. Confirm pilot and main burners have been extinguished.
5. Set the thermostat to the desired setting.
For complete unit shutdown, proceed as follows:
1. Turn off the gas valve(s) main manual valve.
2. Set thermostat to lowest setting.
3. Shut off all electric power.
Gas Input Adjustment
When shipped from the factory, all units are equipped for the average heat content of the gas
which is stamped on the unit rating plate.
NNOOTTIICCEE
HHeeaatt EExxcchhaannggeerr DDaammaaggee!!
FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn hheeaatt eexxcchhaannggeerr ddaammaaggee..
HHeeaatt ccoonntteenntt ooff ggaass vvaarriieess bbyy llooccaalliittyy;; cchheecckk tthhee ggaass iinnppuutt aafftteerr iinnssttaallllaattiioonn ooff tthhee uunniitt ttoo
eennssuurree pprrooppeerr iinnppuutt.. NNeevveerr eexxcceeeedd tthhee iinnppuutt oonn tthhee rraattiinngg ppllaattee..
For an accurate input rate measurement the following meter method should be used to
determine unit input rate. If the meter method is not possible, a manifold pressure check should
be made.
MMeetteerr MMeetthhoodd ooff CChheecckkiinngg IInnppuutt RRaattee
OOppeerraattiioonn
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