Model 700 - Aprilaire 600 Owner's Manual

REQUIRED MAINTENANCE INSTRUCTIONS
(APRILAIRE HUMIDIFIER MODEL 700)
ELECTRICAL SHOCK HAZARD. Can cause injury or death. Disconnect
all electrical power supplies before servicing. Shut off water supply
before disconnecting or tapping into any water supply line.
1. Humidifier Cover
Assembly
2. Base Assembly
3. Water Panel Evaporative
Assembly
4. Distribution Tray
5. "V" Notches
6. Water Panel Evaporator
7. Scale Control Insert
8. Drain Line
9. Power Cord
1. Note Humidifier Control setting and turn dial to the "OFF" position.
2. Disconnect electrical power and turn off water supply.
3. Unlatch humidifier front cover assembly (1) from base assembly (2) at the bottom of the cover,
lift, and set aside.
4. Pull out the water panel evaporator assembly (3) by grasping at the top and tipping out.
5. Unsnap the distribution tray (4) from the scale control insert (7). Follow the instructions below
depending upon the type of distribution tray in your humidifier:
For trays with a synthetic fabric liner: Lightly scrape out or brush off any mineral deposits,
being careful not to stretch or loosen the synthetic fabric liner. Soaking the tray in vinegar or
a lime-removing agent is helpful when trying to remove stubborn mineral deposits.
For trays with granular coating: Do not scrape off the granular coating, but lightly scrape out
any mineral deposits and clean the "V" notches (5). This textured surface helps ensure even
water flow for maximum performance. See page 2 if removed.
6. Slide the Water Panel evaporator (6) out from the scale control insert (7). Clean the scale
control insert of mineral deposits. Replace the Water Panel evaporator (Stock No. 35) with a
new Genuine Aprilaire Water Panel. Slide the Water Panel evaporator back into the scale
control insert with the colored spot up and snap the distribution tray (4) back into place.
7. Inspect the plastic feed tube by gently flexing it and looking for cracks or signs of wear.
Replace tube if it is cracked, brittle, or has been damaged.
8. Reinstall the Water Panel evaporator assembly (3) into the humidifier by fitting its drain into
the round receptacle at the base of the humidifier. Push the assembly in at the top between
the retaining ribs that hold the assembly in place in a vertical position.
9. Remove the drain line (8) from the bottom of the humidifier. If applicable, flex it to loosen any
mineral deposits or blockage. Then flush it with water under pressure. If it does not clear,
replace it. Slip drain line back onto the drain fitting. Make sure the drain line has a constant
downward slope and is not flattened or blocked.
10. Reinstall front cover assembly (1) by hooking at the top of the base assembly (2) and latching
at the bottom.
11. Reconnect electrical power (9) and turn on the water supply.
12. Check system operation:
Humidifier Control: (Automatic or Manual) Check system operation and reset change water
panel indicator by setting the knob to "Test/Reset". With furnace blower operating and
furnace calling for heat, humidifier will operate for one minute. DO NOT LEAVE IN TEST MODE
AS HUMIDIFIER WILL NOT OPERATE.
13. Set Humidifier Control to its original position.
NOTE: The motor is permanently lubricated and does not need to be oiled.
WARNING
3
4
7
1
6
9
- 12 -
5
2
8
90-1075