Honeywell ER200 사용자 설명서

69-1188—03

4 

Condensation normally forms on the energy transfer core during the cold weather 

(below 27°F or -3°C). Moisture can build up when the warm air from your home 

comes in contact with the cold air from outside. The tray collects the moisture and 

funnels it to the drain. The drain pans are made of thermoformed plastic for easy 

cleaning.

Some models have an electronically-controlled damper frost control mechanism 

to prevent frost buildup on the core. Defrost timing will change based on incom-

ing outdoor air temperature.

Example: When the outside temperature drops below 27°F (-3°C) the defrost 

timer is activated. At the end of the 25-minute run cycle, when the core can 

experience some nominal frost buildup, the timer activates a motor-driven 

damper door that simultaneously opens the defrost port and closes off the 

supply air port.

.

27°F (-3°C)

3 minute defrost/25 minute run

-4°F (-20°C)

4.5 minute defrost/17 minute run

-31°F (-35°C)

7 minute defrost/15 minute run

DEFROST DAMPER 

(MOTOR AND DOOR)

CABINET

FILTERS

(2)

DRAIN 

P TRAP

DRAIN PANS

DRAIN

LINE

DOOR 

KEEPER 

PLATE (2)

INSULATED 

ACCESS

DOOR

M29852

MAIN

MOTOR

DEFROST PORT (NON-DUCTED)

CORE INSTRUCTIONS

ENERGY TRANSFER 

CORE

SQUIRREL 

CAGE FAN

DUCTING 

(4 PORTS)

CORE GUIDE

CHANNEL (4)

69-1188_A.fm  Page 4  Wednesday, January 27, 2010  7:25 AM