Check-Out/Startup Verification - Weil-McLain Eco Tec 2 Series Manual

ECO ® Tec series 2 gas-fired water boiler – boiler manual
Startup — final checks
Check Thermostatic Mixing Valve
Operation
(Combi Model Only)
• Ensure an ASSE 1070 Thermostatic Mixing Valve is installed
on the domestic hot water outlet pipe from the combi boiler
and is installed per the manufacturer's instructions.
• Set Boiler Control (Figure 95, page 105) to be slightly higher
than the desired temperature of the mixed hot water out of
the mixing valve
• Open a faucet to allow water to flow through the combi
boiler and allow boiler to operate and modulate to the set

Check-out/startup verification

Adjust and test boiler controls
1. Follow instructions in this manual to set and verify operation
of the boiler controls.
2. Follow low water cutoff manufacturers instructions (if used).
Have the following been done?
Is the control set for the correct boiler model?
‰
Installation date and time entered into control?
‰
Boiler and heat distribution units filled with water?
‰
Water chemistry verified per page 119?
‰
Sentinel X100 corrosion inhibitor added and water tested to
‰
be within range?
Automatic air vents, if used, opened one full turn?
‰
Air purged from system?
‰
Air purged from gas piping? Piping checked for leaks?
‰
Has the condensate trap been primed and secured to drain
‰
tube with hose clamp?
Control set to correct gas type and altitude settings?
‰
Propane orifice and mixer/venturi installed for propane firing
‰
and propane conversion label affixed to jacket?
B oilers are shipped ready to operate on
natural gas ONLY. To operate on propane,
you must follow the instructions in this
manual to install the propane venturi and
orifice. See page 14 for propane conversion.
Failure to comply could result in severe personal
injury, death or substantial property damage.
Thermostat circuit wiring checked to ensure there are no
‰
stray voltages?
Followed Operating Instructions, Figure 112, page 123?
‰
Burner flame and combustion verified per page 122?
‰
Control operation for space heating, DHW (Indirect tank)
‰
(if used), DHW (Combi model) verified per this manual?
Additional field-installed controls tested as outlined by
‰
control manufacturers? (Boiler should be operating and
should go off when controls are tested. Verify controls cause
automatic reset lockout or manual reset lockout as desired.)
Fill out start-up data on the Installation and Service Certificate, page 173.
126
(continued)
temperature. More than one faucet maybe required for
steady modulation and outlet temperature.
• Once the combi boiler is delivering a steady temperature of
domestic hot water, follow the manufacturer's instructions
to properly adjust and set the thermostatic mixing valve.
• Make sure to check the hot water temperature at all fixtures.
Additional thermostatic mixing valves may be installed
in the system near or at fixtures. The Combi boiler's
thermostatic mixing valve and/or other installed mixing
valves may need adjusted accordingly.
Additional field-installed limit control(s) set to system
‰
temperature requirements? Balancing valves and controls
adjusted to provide design temperature to system?
Flow adjusted/balanced for each zone of multiple zones
‰
systems?
Thermostat heat anticipator (if available) set properly?
‰
Boiler cycled with thermostats (and with DHW aquastat, if
‰
installed) — Raised to highest setting and verified boiler goes
through normal startup cycle? Lowered to lowest setting and
verified boiler goes off?
Combi models only: Boiler cycled with hot water faucet.
‰
Verify boiler goes through normal start up cycle.
Natural gas input measured? (page 124)
‰
Incoming gas pressure checked by connecting manometer to
‰
gas valve ahead of boiler? (Gas pressure must be at least the
minimum values given on page 19, with boiler operating at
high fire, and no more than 14 inches (355 mm) w.c. with
boiler operating or boiler off.)
Heat exchanger and vent seals checked with mirror to ensure
‰
no leakage ?
Observed several operating cycles for proper operation?
‰
Room thermostats set to desired room temperature (and
‰
DHW aquastat, if installed, to desired DHW storage
temperature)?
Combi models only: Check that the thermostatic mixing
‰
valve is installed and is set correctly according to procedure
on page 44 and information in the paragraph at the top of
this page, and that the control is adjusted properly according
to procedure on page 108 for Control adjustment procedure.
All instructions shipped with this boiler reviewed with owner
‰
or maintenance person?
Before leaving:
Fill in Installation certificate
‰
Return instructions to envelope and give to owner or place
‰
inside boiler housing.
, page 173.
Part number 550-100-270/0122