Nature's Comfort GT-6000, Инструкция по установке и эксплуатации

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D. Plumbing Hook Up
Plumbing connections should be well insulated after installation. Cover bottom access holes as
well.
Minimum pipe size permitted is 1”. Install the outgoing pex line on the pump flange that is already
mounted to the lower end of the circulation pump. Install the return line on the 1” 90 located to the
left of the rear upper heat exchanger tube access cover.
Add a valve to the return line so if
repair or service is needed on lines or equipment, the water in the boiler can be isolated
without having to be drained.
(Valves and PEX fittings can be purchased from NC or your dealer.)
Install a fill line from the domestic water into the return line using a T, 2 valves and a union to
disconnect or a backflow preventer when not using to keep 100% isolated so no boiler water can
ever enter the domestic side.
Use sweeping bends for PEX pipe keeping 90’s to a minimum (no more than 6) as each one adds 1
foot of head pressure, reducing the rate of water flow. For tight radiuses use ¾” rubber heater hose
in short lengths (fits 1” PEX fittings and is available from Nature’s Comfort or your dealer).
For a forced air system, run the line from the pump first to the heat exchanger for the domestic hot
water then to the one in the furnace plenum. For a hydronic radiant system, reverse this order.
Note:
For larger homes, 1-¼ pipe may be needed for maximum BTU output. A 1-¼” pipe can carry
up to 37% more BTUs due to higher water flow. The fittings above would need to be changed to
accommodate 1-¼” Pex. The Armstrong E9.2 pump available from Nature’s Comfort or your dealer
has the ability to do this in a 1” pipe within distance & height limitations.
E. Wiring the GT Boiler
A qualified electrician must wire this boiler in accordance with the National Electrical Code.
Using 14/2 with ground UF cable on a dedicated 15amp, 115vac circuit that is
ground fault
protected
, land power, neutral & ground wires to the
L1, N & G terminals on the top left of the
grey terminal strip. The small pair of red and black wires must be landed on the battery
charger and the charger plugged in.
See controls section for an electrical diagram.
The size and type of electric wire to be installed depends on the distance from the boiler to the
house. If the boiler is less then 100 feet from the house, #14 AWG UF cable is the smallest wire
that may be used. If the distance is greater than 100 feet, #12 AWG UF cable must be used.
A maximum of 5 amps is used by the boiler if all standard equipment is running. The extra outlet will
provide a total of 10amps for convenience use.
F. Preconditioning Door Seals, Butterfly Air Spinners
Option 1: (Good) Wet the rope seals with WD-40 before firing the boiler to keep prevent hardening
from smoke and creosote and re-apply 1 or 2 times during the heating season or as needed.
Option 2: (Better) Purchase a tube of high temperature caulk from your dealer or Nature’s Comfort
and lay a bead of caulk on the impression of the door jamb in the rope seals, placing a 2” strip of
wax paper over them. Over-extend the latch open and bounce the door/ash pan closed, then leave
open to fully cure before starting a fire to get a custom seal. Once cured, wet the rope seals with
WD-40 to prevent hardening from smoke and creosote and re-apply 1 or 2 times throughout the
heating season or as needed.
Option 3: (Best but more hassle and messy) Purchase a tube of high temperature caulk from your
dealer or Nature’s Comfort and brush over the entire surface area of the rope seals to permanently
seal out smoke and creosote. Place a 2” strip of wax paper over this. Over-extend the latch open