Bananza UHD 75, Инструкция по установке, эксплуатации и обслуживанию

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UHD L
OW
P
ROFILE
D
UCT
F
URNACE
I
NSTALLATION
O
PERATION AND
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ERVICE
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ANUAL
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Fi g ure 17: Manual Reset Limit Switch
12.3 Li g htin g Instructions
12.3.1 To Turn On Heater
1. Ens u re that the electrical and gas s u pplies to
the heater are on. Check that the on site
controls are "ON".
IMPORTANT: The thermostat setting m u st be above
the ambient temperat u re for the heater to operate.
2. The a u tomatic firing seq u ence w ill begin as
described on Page 27, Figure 15 . The heater
w ill no w operate a u tomatically u nder the control
of the on site controls.
12.3.2 To Turn Heater Off
Set the thermostat to the "OFF" position.
The b
u rner w ill t u rn off immediately.
To restart, t u rn the thermostat above room
temperat u re.
12.4 Simple Troubleshootin g
Some possible reasons for the heater not operating
are:
1. Gas s u pply not "ON".
2. Electricity s u pply not "ON".
3. The time and/or temperat u re controls are not
"ON".
4. A limit s w itch may have operated. This may be
ca u sed by an interr u ption of the electrical
s u pply, fail u re of the distrib u tion fan or vent or
heat exchanger blockage.
If a temperat u re limit s w itch persistently trips, there
is a fa u lt w hich m u st be investigated by a contractor
q u alified in the installation and service of gas-fired
heating eq u ipment.
12.4.1 Simple Troubleshootin g (Burner Faults)
If the b u rner fails to ignite for any reason, it w ill retry
for ignition (fo u r trials total). After fo u r u ns u ccessf u l
ignition trials, the control w ill p u t the heater into
locko u t for one ho u r.
Locko u t sho u ld not occ u r d u ring normal operation of
the heater and indicates there is a fa u lt condition
w hich m u st be corrected. There is an LED light on
the ignition control that flashes codes to assist in
fa
u lt correction. See Page 30, Figure 18 for LED
indication codes.
Fi g ure 1 8 : LED Dia g nostic Codes
Reset Button
To reset man u al reset limit s w itch, press reset
b u tton. NOTE: To reset, the s w itch m u st be cool.
Description Part Number
Man u al Reset Limit S w itch 90412106
LED INDICATION FAULT MODE
Slo w Flash Normal Operation - No call for heat.
Fast Flash Normal Operation - Call for heat.
2 Flashes Ignition Locko u t - No flame detected.
3 Flashes Airflo w Fa u lt - Press u re s w itch open or closed.
4 Flashes Temperat u re Limit or
Man u al Reset Limit S w itch Open
5 Flashes Flame Sense Error - Gas valve not energized.
Steady On Internal Control Fail u re