Thermo Products OH11-105...E ECM Specifications, Additional Features, General, Cycle Control

ECM Specifications

Model Number *		OL5-85...E		OL11-105...E		OH5-85...E		OH11-105...E
CFM from .1 - .6” W/C
	A/C Tonnage Selection
Cooling		A/C	Continuous	A/C	Continuous	A/C	Continuous	A/C	Continuous
		CFMs	Fan	CFMs	Fan	CFMs	Fan	CFMs	Fan
(100 cfm	2 ton	800	500	800	500	800	500	800	500
steps
available	2.5 ton	1000	500	1000	500	1000	500	1000	500
for A/C)	3 ton	1200	600	1200	600	1200	600	1200	600
	3.5 ton	1400	700	1400	700	1400	700	1400	700
	Air Temperature Rise Selection
		Heating CFM		Heating CFM		Heating CFM		Heating CFM
Heating	57° Rise		1400		—		1400		—
(at approx.	63° Rise		1260		1500		1260		1500
rated input
	69° Rise		1162		1350		1162		1350
BTU)
	75° Rise		1050		1245		1050		1245
	83° Rise		938		1125		938		1125

The standard motor size may not support this cfm at high static pressures. * Model numbers end with ‘E’ to signify ECM motor.

Additional Features

General

•Eliminates the need for air temp thermostat to control fan cycling by using time instead.

•Selectable blower turn-on and turn-off delays to adjust comfort & efficiency (turn-on: 30, 60, 120 & 240 sec; turn off: 2, 4, 6 & 8 min)

•Three blower operating choices: HEAT, COOL & FAN for best efficiency for each mode.

•Reduces A/C blower speed 50% on demand to increase dehumidification.

•Cooling blower delays of 10 seconds on, and 45 seconds off to enhance cooling comfort and efficiency.

Cycle Control

•4 minute minimum A/C off time to reduce Short-Cycle related failures.

•A high limit will cause the blower run at the selected HEAT speed. It will then run for the HEAT turn off time afterwards in the absence of a HEAT call.

•Blower operation will “time out” before mode is switched between HEAT & COOL to prevent stress related evaporator failures.

•Burner Cut-Off on high limit

Speed Control

•Selectable air temperature (heat) rise from Return to Supply Plenum (choose from: 63, 69, 75 and 85ºF)

•Selectable CFM rates for matching A/C tonnages. These CFM selections support from 2.0 to 3.5 tons.

•Maximum CFM’s are limited by the maximum RPM of the ECM motor and the duct static pressure. Please refer to the manual addendum for guidelines.

Diagnostics

• Control Input LED’s indicate active thermostat input lines.

• Diagnostic LED indicate:

1.Active Operation (turn full on during burner or compressor operation)

2.A HIGH LIMIT condition. (flash on/off at 2 ½ times per second)

Form No. PL81410021002 - 6/05 - 20Ms Printed in the U.S.A.

© 2005 Thermo Pride - North Judson, IN Phone: 574-896-2133 www.thermopride.com