HANDLING MANUAL
SERVICE MANUAL
RAYPAK HI DELTA BOILERS/WATER HEATERS
WITH FAN ASSISTED PREMIX BURNERS
18
!
Do not attempt to ignite the burners with a
match! The burners will be ignited automatically
by the appliance when needed. The red colour
“SAFETY” light on the side panel goes on in
case of an ignition failure.
-
If necessary the ignition sequence is repeated five
times, then the appliance locks out in locked position
if remote sensing is not established. The “SAFETY”
light goes on. The ignition error can be reset by
pushing the reset button located on the C rail. The
appliance tries to start again in case of a heat demand.
-
The manual high limit locks out the appliance in
locked position if the temperature setting of it is
lower than the setting of the auto high limit. (It is
also indicted by red the “SAFETY” light.) Wait until
the heating substance cools back then adjust the
manual high limit to a temperature at least 5
0
C higher
than the value on the automatic high limit. Restart the
appliance by pushing the red button on the manual
high limit!
-
The automatic high limit stopped the appliance
because it is adjusted to a lower temperature than any
external thermostat or stage controller connected. It
is a general rule that the temperature setting of the
automatic high limit must always be higher than the
highest possible temperature allowed by an external
thermostat or stage controller Adjust the Automatic
high limit to a higher temperature value, as
appropriate!
-
There is no gas!
-
The flow through the heat exchanger is not proper.
The appliance does not start despite “POWER” and
“HEAT DEMAND” lights are on. “FLOW” light is
off. Check if the pump connected to the appliance is
working and the position of the closing fittings in
hydraulic system!
-
Call an authorized service if the appliance is still not
working!
-
Follow the instructions at the
„HOW TO TURN
OFF THE APPLIANCE 2.5,”
part and call an
authorized service if the burners do not stay on after
several attempts!
-
The appliance begins the ignition sequence. The
“FLOW” light goes on indicating that the pump is
operating and there is a required amount of heating
substance flow. The proper operation of the blowers
is indicated by the appropriate “BLOWER” light
turning on. All of the blowers in a given model must
operate simultaneously. The number of the blowers
differs model by model. The ignition glows up after
the pre-purge time (in 15 seconds) the gas valve of the
appropriate stage opens after the igniter reaches the
necessary temperature. (in about 45 seconds) The
green light of the appropriate “STAGE” indicates that
a given stage is in operation. The appliance is ready for
operation now and it will operate when there is a heat
demand.
-
Mount back the side cover of the electric control box!
Check the following things if the appliance does not start
or stops during the operation!
-
Burnt out fuses, cut-outs and switched off circuit
breakers in the electric network leading to the
appliance.
-
If any of the blowers is unable to produce the
necessary pressure difference its “BLOWER” light
goes off, the appliance stops in about 15 seconds and
the “SAFETY” light goes on. Check and clean the air
filter when needed! Check if the air system is blocked!
Mount back the side cover of the electric control box
and try again if the appliance is ready to operate!
-
The blowers are unable to forward any air when the
flue system is blocked in 100%. The occurring error is
the same as it was at the previous point. The
“BLOCKED VENT” light is not lit.
-
The “BLOCKED VENT” light goes on when the flue
system is blocked partially.
!
Repair and maintenance works during the
warranty period are allowed to be carried out by
an authorized service only. The list of the
authorized services is included in the warranty
card.