Operating instructions

12/23/2011 16 EI711A
Handheld Analyzer/Laptop Software
This test tool and/or software is available for temperature offset, field altering the program chip
parameters and setup, and general assistance for troubleshooting. However, for this special version 17.10
software the factory or setup defaults, read out and controlled are different.
The WF-ANZ*, version 4.12 update, now can be used to real time calculate CFM.
Setup Defaults
MU TIME – 00 OT FUNC – DT CAL
SB RESET – DISABLE ODT SW – HP ODT
SOT-S TIME – 00 OT SPD A – 30
SOT-E TIME – 00 OT SPD B – 20
STG 1 OT DIS – 55 ST SPD A – 95
STG 2 OT DIS – 38 ST SPD B – 105
STG 3 OT DIS – 36
STG 4 OT DIS – 34
Troubleshooting
Room thermostat system setup – this combination system requires special roomstat setup programming.
Failure to reprogram the system as defined on pages 13 and 14 could cause malfunction and could
seriously reduce expected efficiency and comfort.
Sensor Temperature Calibration – both remote sensors are digital electronic and factory calibrated.
Normally these do not require field calibration or verification. However, if sensor temperature error is
determined, use WarmFlo Analyzer test set or purchase special PC software disc and PC serial port cable.
These plug-in devices allow direct readout of both temperatures, allows a visual determination of
WarmFlo internal temperature settings, and can be used to offset either temperature sensor for
troubleshooting and demonstration purposes. This is especially valuable during summer installation. Call
local distributor and order WarmFlo Analyzer.
Override Staging, “E” Tab Input – during a normal roomstat heat call, jumper E to R, this brings on all
four stages and essentially bypasses any temperature sensing or stage modulation functions.
Note: Do not leave E to R jumper when not present.
Troubleshooting/Repair Helps
1. This WarmFlo controller contains several interference suppression components, but as an
electronic logic product, unpredictable and unusual transients or interferences may sometimes
cause strange results. If the WarmFlo controller is “acting strange”, one immediate step would
be power down reset. Simply turn off the 24-volt source power (probably furnace or air handler
circuit breaker), when the green LED goes out, count to 10, and re-energize power supply.
2. The outdoor sensor must be located outdoors for this controller to correctly operate. Do not
leave the outdoor sensor “hanging in conditioned space” and attempt to run this system.
3. Acquiring the WarmFlo Analyzer test set or the PC software and serial port hook-up cable (see
previous page) is a positive tool for understanding and troubleshooting the WarmFlo controller.
Either test set device can display all temperatures, real time evaluation of WarmFlo functions,
provide temperature offsets for assimilating winter conditions, and reprogram the control chip
(program stays with the actual controller board).
Bad sensor, safety – if the internal logic detects open sensor wire, incorrectly wired sensor, or some bad
sensor transmitted value conditions; the green LED reverts to a pulsing mode. Basically the appropriate
sensor is set internally to a 0° value and the WarmFlo main board only allows stage 1 and stage 2 on.
- OT sensor – approximately 1/10 second blip every ½ second
- ST sensor – two, 1/10 second blips every ½ second
- Both bad – ½ second on and ½ second off, alternating