Weil-McLain PLUS LINE PLUS-E017-A/1206 Manual Do Utilizador



Part Number PLUS-E017-A/1206

 Indirect-Fired Water Heaters – Series 3

B4

[

3180] (burner on, space heating) Once flame is proven

and stable, the burner turns down to low fire for ap-
proximately 2 minutes.

•  After  this  low  fire  period,  the  burner  is  allowed  to

modulate. Firing rate depends on actual outlet water
temperature versus target temperature.

.  Allow boiler to bring water temperature to target

temperature.

[

6180] (target temperature reached) The burner will shut

down. The blower will run in postpurge (see below),
then turn off. The boiler circulator continues to run
as long as there is a call for heat.

.  Lower room thermostat to stop call for heat.

[

1180] (postpurge) When the room thermostat is satis-

fied (call for heat ended), the burner turns off. The
blower will continue for a 1-second postpurge, then
turn off. (If another call for heat occurs, the boiler will
remain off for one minute before starting again, and
the display will show [

6180].)

[

0180] (no call for heat) Boiler is now in standby mode

(waiting for heat call).

.  Repeat above steps several times to verify opera-

tion.

8.  Return the room thermostat to normal setting.

Verify water heater operation

1.  Reconnect PLUS aquastat wiring to boiler if neces-

sary.

2.  Turn off power to boiler at service switch.
.  Wait a few seconds, then turn on power to boiler.

[

A180] (self-check on power-up, for a few seconds)

[

0180] (no call for heat)

.  Raise  PLUS  aquastat  above  tank  temperature,  to

call for heat.

[

5180] (blower/circulator on) The blower and PLUS circu-

lator energize and the control checks for air flow.

[

1180] (prepurge) Blower speed will increase to igni-

tion speed. The blower will run in prepurge for 10
seconds.

[

2180] (ignition) After prepurge, the control module

opens the gas valve and starts ignition spark.

a.  If burner flame proves within . seconds, burner

continues  to  fire.  Burner  will  fire  at  start-up
rate — 0% of maximum input — for about 10
seconds to allow flame to stabilize.

b.  If burner flame does not prove within . sec-

onds, control module attempts ignition sequence
again. Flame must prove within  attempts or
control will lockout (display will show [

E  02]).

c.  Verify flame failure operation by closing boiler

manual gas valve to prevent gas flow. Open gas
cock after testing.

[

4180] (burner on, PLUS) Once flame is proven and

stable, the burner is allowed to modulate. Firing rate
depends  on  actual  outlet  water  temperature  versus
target temperature.

.  Allow boiler to bring water temperature to target

temperature.

[

6180] (target temperature reached) The burner will shut

down. The blower will run in postpurge (see below),
then turn off. The PLUS circulator continues to run
as long as there is a call for PLUS heating.

.  Lower PLUS aquastat to stop call for heat.

[

1180] (postpurge) When the room thermostat is satisfied

(call for heat ended), the burner turns off. The blower
will continue for a 1-second postpurge, then turn off.
(If another PLUS call for heat occurs, the boiler will
begin the heating cycle immediately.)

[

8180] (PLUS circulator run-on) The PLUS circulator

continues to run for 0 seconds.

[

0180] (no call for heat) Boiler is now in standby mode

(waiting for heat call).

.  Repeat above steps several times to verify opera-

tion.

8.  Return the PLUS aquastat to normal setting.

Operating information

1.  To check operating conditions (actual and target

temperatures, for example), see

Gas Boiler

Manual  for  an  explanation  of  the

 control

module Information mode.

2.  During normal operation (no shutdown or lock-

out), the right  display digits show actual boiler

outlet water temperature.

Replace jacket front door

 Replace  boiler  jacket  front  door  after

installation or servicing. The boiler front

door  must  be  securely  fastened  to  the

boiler  to  prevent  boiler  from  drawing

air from inside the boiler room. This is

particularly  important  if  the  boiler  is

located in the same room as other appli-

ances. Failure to keep the door securely

fastened could result in severe personal

injury or death.