Operation Indicators - Electro Industries EM-WE1025H Installation Manual

WarmFlo II Controller
Strip Heat Disable – To maximize heat pump system energy efficiency and preventing "accidental"
unnecessary resistant strip heat when it is not required, this WarmFlo II controller disables or locks out
strip heat elements based upon outdoor temperature.
Stage 1 - 5ØF
Stage 2 - 38F
Stage 3 - 36F
Stage 4 - 34°
Monitor LED's on WF II Controller
Green LED - When illuminated the WarmFlo II controller is receiving 24v power. Under all
normal operating modes, this should be solid green.
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As a secondary function this green LED provides status of the two remote sensors. If a
sensor is inoperative, incorrectly wired, or malfunctioning; this monitor light is in a
blinking or pulsing mode. By checking the pulsing pattern, the appropriate sensor can
be identified.
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Amber LED – When illuminated the WarmFlo II controller is in the electric heat operating mode.
Red LED's - The four red LED's next to the output connector, indicate Stage 1, 2, 3, and 4
operation (Stage 1 is on the right).
Inside Relay Board Monitor Light
COMMENT: The relay board activates from the WarmFlo II controller as the WarmFlo II
controller interprets the "Y" input voltage in relationship to both temperature sensor
requirements. However, the "Y" input also directly controls the Stage 1 triac and the staging
relays. Whenever the "Y" input goes to 0 volts (at the end of the cycle) the relay output
immediately goes off and strip heat is turned off and not necessarily stepped down as shown
by the WarmFlo II monitor Red LED's. This is a safety feature; strip heat cannot be on
accidentally by the WarmFlo II controller internal logic if there is no "Y" input.
Red LED - Illuminates when the low voltage hi-limit sensor probe (135°) opens. This applies
only after thermostat heat call and WarmFlo II controller is activating various element stages. If
there is a hi-limit condition, red LED is illuminated. As soon as the hi-limit cools and snaps back
in, red LED extinguishes.
Triac Relay Module (mounted next to relay board)
This module has its own built-in LED. When the LED is on, the triac switch is closed, elements will be
heating. This LED shall operate coincident with Stage 1 on the WarmFlo board.
06/07/2016

OPERATION INDICATORS

OT sensor - 1ØØ ms blink every second.
ST sensor - two, 1ØØ ms blinks every second.
Both bad - ½ second on, ½ second off, alternating.
8 EI508