55
MAINTENANCE
b. Disconnect the condensate piping from the outside
connections (not from the Peak side) so the flow can be
observed.
c. Disconnect compression nut on gas valve inlet and
disconnect the gas valve electrical connector.
d. Remove the four 10 mm nuts from the burner plate assembly.
Disconnect wire leads to the spark igniter and flame sensor.
Disconnect two Molex plugs from blower motor.
e. Pull the entire burner plate towards you to access the
heat exchanger coils.
f. Significant deposits may be caused by the recirculation
of exhaust gasses, poor fuel quality or contamination
of the air supply. Review Section 3, Venting & Air Inlet
Piping, if deposits are evident.
2. Using a spray bottle filled with the recommended product
“Rydlyme” or “CLR”, spray liberally on the coils, making
sure the solution penetrates and funnels down through the
condensate hose. If the condensate hose is blocked, let the
chemical penetrate for at least 15 minutes or until it drains.
3. Use the nylon or brass brush (do not use steel) and scrub coils
to remove any buildup, then vacuum the debris from the coils.
4. Spray coils with clear water, making sure to confine the
spray to the area being cleaned (try to avoid wetting the
back ceramic wall of the unit). Flush the combustion
chamber with fresh water. At this point, the Peak should be
ready to power back up.
5. Reinstall the burner plate assembly using the following steps:
a. Inspect the inside of the heat exchanger for dirt and debris.
b. Install the burner plate assembly and replace the four 10
mm nuts.
c. Reconnect the wire leads to the spark igniter, flame
sensor and gas valve. (Be sure that the spark igniter is
connected to the lead with the large insulated connection
boot.) Reconnect two Molex plugs on blower motor.
d. Connect the compression nut on the gas valve inlet and
reattach the gas valve electrical connector.
e. Reset thermostats.
(IMPORTANT: BE SURE THAT
THE VENT CONNECTION IS NOT BLOCKED.)
f. Turn the power to the Peak on. Observe the display
module to assure proper operation.
g. Initiate a call for heat** and observe the condensate flow.
h. Reconnect the condensate piping to the drain connection.
**NOTE: When firing the boiler the first few times
you may experience some fluttering of the gas
burner that may result in a flame lockout. This
is normal and will require you to recycle the unit
until this clears up. This is caused by water still
present in the combustion chamber.
6. Inspect exhaust vent and air intake vents for proper
support and joint integrity. Repair as necessary. Refer to
Section 3, Venting & Air Inlet Piping.
7. Inspect exhaust vent and air intake vent terminations for
obstructions or corrosion. Corrosion is an indication of
exhaust gas recirculation.
F. HEAT EXCHANGER GASKET REPLACEMENT
If at any point the silicon burner door gasket shows signs of
damage or after two years of operation it needs to be replaced.
Inspection during annual cleaning is the best time to check and
replace this gasket.
G. FLOW RESTRICTOR MAINTENANCE
The Peak has a 4.75 GPM flow restrictor installed inside the CHB
block that contains a screen filter. This filter protects the plate heat
exchanger from sediment infiltration that would be large enough
to become stuck inside the plate heat exchanger passages. This
filter should be checked and flushed clean on an annual basis.
More frequent cleaning might be required in poor water areas.
The following steps can be taken to clean or replace the flow
regulator:
1. Power off the boiler.
2. Isolate the unit from the main domestic water supply of the
dwelling and remove pressure on the Domestic side of the unit.
3. The flow regulator is located below the flow sensor on
the right half of the CHB unit, immediately left of the
pump. Insert a small screw driver into the rounded tab or
use a pair of pliers to turn the regulator housing counter-
clockwise.
4. When the locking tab are in line with the openings in the
main housing, pull the flow regulator housing out of the
CHB body.
5. The flow regulator is the small white cartridge inside of the
housing. It can be removed by pushing it out of the housing.
WARNING
WARNING
It is extremely important to check for leaks when
reconnecting the gas valve. Failure to do so may result in
severe personal injury, death or major property damage.
Leaks in the vent system will cause products of
combustion to enter structure (vent system operates
under positive pressure).
Summary of Contents for Peak-40
Page 22: ...22 WATER PIPING AND CONTROLS Figure 4 6 Recommended Central Heat Piping ...
Page 24: ...24 WATER PIPING AND CONTROLS Figure 4 8 Recommended Domestic Hot Water Piping ...
Page 33: ...33 ELECTRICAL CONNECTIONS Figure 7 4 Wiring Schematic and Connection ...
Page 47: ...47 START UP PROCEDURE E LIGHTING OPERATING PROCEDURES ...
Page 59: ...59 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 62: ...62 REPAIR PARTS Figure 13 2 Peak 40 LP Combustion Components ...
Page 64: ...64 REPAIR PARTS Figure 13 3 Peak 40 NG Combustion Components ...
Page 66: ...66 REPAIR PARTS Figure 13 4 CHB Parts Detail ...
Page 68: ...315 Oser Avenue Hauppauge NY 11788 Tel 631 694 1800 Fax 631 694 1832 www embassyind com ...
