4
Step 6 — Attach Water Line to Humidifier and
Supply Line
1. Turn off the water supply to the line where the saddle valve
will be located. Mount the saddle valve (included) on the
water supply line. Do not pierce the supply line at this time.
Note: Saddle valve is self--piercing on copper lines. If steel
or iron pipe is used, a 1/4--in. (6.4 mm) hole must be drilled
in steel or iron pipe. Use only a grounded drill or hand drill
to avoid a shock hazard. Prior to drilling, turn off water sup-
ply and drain the pipe. The humidifier will function with
hot, cold, softened or unsoftened water, although hot water
will provide maximum evaporative capacity. Where water
pressure exceeds 125 psi, follow proper procedures and
codes to reduce pressure.
2. Run 1/4--in. (6.4 mm) diameter water line grade copper tub-
ing from saddle valve to solenoid valve.
3. Connect solenoid valve to 1/4--in. water line using compres-
sion fittings. Use two wrenches to tighten.
A13325
Fig. 9 -- Connect Solenoid Valve
4. Pierce the water line with the saddle valve. The saddle valve
should completely penetrate the supply line and be fully
open. (Refer to instructions on packaging of saddle valve.)
A13326
Fig. 10 -- Pierce Water Line with Saddle Valve
5. Open the water supply line.
6. Check for leaks at saddle valve and at solenoid valve con-
nections.
Step 7 — Install the Humidistat
The humidistat included with this unit can be either wall mounted
or duct mounted. Refer to installation instructions included in
humidistat box.
Step 8 — Wiring the Humidistat to Furnace or
Fan Coil
1. DISCONNECT ELECTRICAL POWER TO FUR-
NACE OR FAN COIL BEFORE PROCEEDING.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal injury
or death.
Before installing or servicing system, always turn off main
power to system. There may be more than one disconnect
switch. Lock out and tag switch with a suitable warning label.
!
WARNING
2. Use humidistat in low voltage (24VAC) applications only.
Install 24VAC wiring to humidifier control as shown in the
following wiring diagrams:
HUMIDIFIER
24 VAC LEADS
C
HUM
MANUAL
HUMIDIFIER
CONTROL
HUMIDIFIER CORD
PLUGGED INTO
120 VAC POWER SOURCE
A13315
Fig. 11 -- Typical Wiring to Standard Furnace
