Camus Hydronics DRW1000, Инструкция по установке и обслуживанию

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point is satisfied. This will remove any residual heat from the
combustion chamber before turning the pump off. See wiring
diagram shipped with the unit.
11.8 SUMMARY
a) Typical Boiler Installations
General Plumbing Rules
1 Check all local codes.
2 For serviceability of boiler, always install unions.
3 Always pipe pressure relief valve to an open drain.
4 Locate system air vents at highest point of system.
5 Expansion tank must be installed near the boiler
and on the suction side of the system pump.
6 Support all water piping.
b) Placing the Boiler in Operation
Pre-Start Check List
1 Review the location of the boiler, clearances from
combustible surfaces and available service
clearances.
2 Review Part 2 Venting. Ensure that all vent
components are fabricated from the correct category
of materials with adequate clearance from
combustibles.
3 Ensure that the boiler condensate drain and all vent
system condensate drains are properly routed to an
acceptable floor drain or neutralization system.
4 Review the vent termination point for proper location
and clearances.
5 Ensure that proper volumes of combustion and
ventilation air are provided to the mechanical room.
If a separate combustion air pipe is used, ensure that
it is properly sized, sealed and terminated.
6 Review the water piping from the boiler to the
system. The boiler must be installed in a primary/
secondary piping system. Review the diameter and
equivalent length of the installed piping to and from
the boiler for proper flow.
7 Ensure that a properly sized primary system pump is
installed with an expansion tank.
8 Check system pressure. Ensure a minimum of 30
PSIG with the system hot and not more than 90% of
the rated pressure of the relief valve.
9 Review the installed gas piping from the meter to the
boiler. Ensure that the gas pipe, meter and any
regulators are adequately sized.
10 Review the field wiring and electrical service for both
the boiler controls and pump. Ensure that the
electrical service(s) is adequately sized.
Boiler Set-Up
1 Ensure that the boiler and piping system are full of
water. Bleed all air from the pump housing and
secondary loop.
2 Check system for any water leaks.
3 Check system for installation of glycol or water
treatment where required. Where glycol has been
used to maintain the temperature rise across the
appliance confirm that the recommended flow for
pure water has been increased by 15% and the
head loss by 20%.
4 Turn on power to the primary system pump and
the appliance secondary pump and verify
operation.
Boiler Operational Checks
1 Turn the boiler main power switch to the “ON”
position.
2 Program the adjustable points.
3 Turn the switch to the “ON” position to start boiler
operation.
4 Push the resets for low water level, high water
temperature and alarm.
5 Install a manometer on the gas supply to the boiler
and verify minimum gas supply pressure as the
burner fires at 100% of rated input.
6 Verify operation of safeties as necessary (low
water cut-off, high limit, gas pressure, etc.).
7 Once the boiler is running and the flame has
stabilized, remove the flame sensor wire at the
sensor. Main flame must extinguish within 4 sec.
If flame does not extinguish replace the ignition
control.
Boiler Operation
1 Appliance should begin the start-up process for
the sequence of operation.
2 The boiler will fire down to 20% on initial start-up
and adjust input as required to meet system
demand.
3 Based on system demand, the appliance will
modulate accordingly.
4 As system demand is satisfied, the burner will
cycle off and the combustion air fan will decelerate
at a pre-programmed rate before the appliance
shuts down.
DR 300 – DR 2500