Drain Valve Cleaning; Installing The New Cylinder - Honeywell HM700A1000 Installation Instructions Manual

Drain Valve Cleaning

Always clean the drain valve before installing a new cylinder.
Scale from the spent cylinder may have fallen into the drain
valve and could prevent its proper operation. To properly clean
the drain valve it must be removed and disassembled.
1. Disconnect spade terminals from the drain valve.
2. Remove the two screws holding the valve to the drain
pan.
3. Squeeze the tabs of the spring clamp holding the hose
to the drain valve and slide it up the hose. Pull hose
from drain valve. Lift the drain valve from the drain pan.
4. Unsnap red coil cap on solenoid and remove the sole-
noid from the valve.
5. Loosen brass nut holding actuator to plastic housing
with a wrench and disassemble actuator.
6. Clean actuator components and valve housing (inlet
port, outlet port, and cylinder port). Put new o-ring that
was supplied with new cylinder into valve.
7. Reassemble actuator making sure tapered end of
spring is oriented as shown in Fig. 24. Tighten brass nut
1/4 turn past hand tight.
8. Clean out end of hose and reattach to valve. Slide hose
clamp back in place and place valve into drain pan.
9. Secure valve with 2 screws to drain pan.
CYLINDER PORT
AND O-RING
HOSE AND
HOSE CLAMP
SCREWS
BRASS NUT
(ACTUATOR)
Fig. 23. Drain valve.

Installing the New Cylinder

CAUTION
Make sure the new cylinder is a HM700ACYL2. Use
of any other model or remanufactured cylinders
will void the HM700 warranty.
GROUND 1. Insert cylinder into drain valve. Tilt cylinder forward and
WIRE
fit end of steam hose to steam outlet. Tip cylinder back
into place.
2. Tighten hose clamp being careful not to over tighten and
crush the plastic cylinder steam outlet.
3. Attach color-coded cylinder plugs to the corresponding
color-coded cylinder pin. Push down completely.
SOLENOID
Connect high water sensor plug. Spring-loaded plugs
should fit snuggly onto the cylinder pin. Replace if they
are loose or damaged.
4. Re-fasten tie strap.
5. Replace the humidifier cover and secure with two
screws.
6. Turn on power to humidifier with the external
SPADE
CONNECTORS
disconnect.
MCR35700
7. Open supply water shut off valve.
8. Turn the humidifier On/Off /Drain switch to On.
19
ACTUATOR
SPRING
(NOTE ORIENTATION)
SLEEVE AND
SOLENOID
Fig. 24. Drain valve actuator assembly.
HM700A1000
PLUNGER
M35707
33-00118—01