Condensate Trap; Removal Of Ducts; Pressure Switch (625 & 630 Only); Flow Temperature Sensor - Baxi Heat 616 Installation And Service Manual

10 Maintenance
Trap Securing Clip
Disengaged
Trap Securing Clip
Engaged
Fan Air
Duct
Flue Clip
Flue Outlet
Duct
52 600 Heat
90° rubber hose
Condensate
Trap
Fig. 48
Fig. 49
10.3.3 Condensate Trap (Fig. 48)
1. Disengage the condensate trap securing clip by pulling
forwards and hinging upwards.
2. Disconnect the 90° rubber hose from the trap and dismantle
the condensate drain pipework as necessary. Carefully pull out
the trap and discard.
3. The new condensate trap must be primed by filling with tap
water to a depth of approximately 75mm.
4. Carefully locate the new condensate trap in the boiler
ensuring all seals are located properly and re-engage the
securing clip. Reconnect the 90° rubber hose and pipework.
Removal of the fan air duct and flue outlet duct is
necessary to enable the changing of the pressure
switch, flow temperature sensor, return temperature
sensor, overheat sensor and gas valve.
10.3.4 Removal of Ducts (Fig. 49)
1. Remove the air duct by pulling the bottom of the duct forward
to disengage it from the gas valve and then sliding the top of the
duct left away from the fan.
2. Disengage the clip at the top of the flue duct, pull the duct
forwards and then manoeuvre it out of the heat exchanger
sump connection.
10.3.5 Pressure Switch (625 & 630 only)
(Fig. 50)
1. Disconnect the pressure switch wiring from the overheat
sensor wiring harness.
2. Depress the retaining latch to release the pressure switch
pull to the right and remove it from the top flue duct tube.
3. Fit the new pressure switch, ensuring the 'O' ring is in place
on the lower spigot and reconnect to the wiring harness from
the overheat sensor.
Top Flue
Duct Tube
Pressure Switch
Retaining Latch
Slide Pressure Switch away from
Top Flue Duct Tube
Fig. 50
Disconnect from Overheat
Sensor Harness
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