Installation manual

ClimateMaster Water-Source Heating and Cooling Systems
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Rx (ERV) Module
Rev.: 09/09/08B
IOM
8
ERV Sequence of Operation - Sheet B
HVAC ON
UNOCCUPIED
MODE
ONLY GO HERE IF IN
COOLING MODE
AND ECONOMIZER
OR WHEEL BYPASS
OPTION IS USED.
NOT FREE
COOLING
COND.
FREE
COOLING
COND.
FREE
COOLING
COND.
NOT FREE
COOLING
COND.
ECONO.
ONLY
ECONO. &
MECH.
COOL
- ERV Wheel off
- OA blower on
- EXH blower on
- 2 pos. damper open
- ERV Wheel off
- OA blower off
- EXH blower on
- 2 pos. OA damper
closed - 2 pos.
EXH damper open.
- Wheel off
- OA blower off
- Ex blower off
- 2 pos. damper
closed
ECONO. AT
MIN. POS.
Recommended
closed
WHEEL BYPASS OPTION
Allows free cooling through
wheel - free cooling limited
to ERVcfm.
ECONO. OPTION
Allows up to 100%
outside air.
FROST PROTECTION
OPTION
- Not Energized
- ERV off
PREHEAT OPTION
- Not energized
- ERV off
STOP JOG OPTION
- Cleans wheel by
periodically rotating
during wheel bypass.
LOW TEMP.
LOCKOUT OPTION
Not Activated
ERV TIMER OPTION
-24hr
- 7 days / week
- (24V or 115V)
CONSTANT
VOLUME ERV
ERV Off
CO2 OPTION
- Measures
space
occupancy
by CO2 PPM.
2 POSITION
DAMPER
OPTION
Closed
VAV OPTION
ERV off
CO2 OPTION
Off
FILTER MAINTENANCE OPTION
- Activates field supplied 24 volt indicator when
airflow is restricted by dirty outside air filter.
- Does not interupt ERV operation.
- Activated off pressure differential across
outside air filter.
- Field set from .2" to 2.0" w.c. Default .55" w .c.
ERV WHEEL MAINTENANCE INDICATOR
Switch monitors ERV wheel amp draw and sends
signal to field supplied 24 volt indiator upon
amperage surge.
O/A AND EXH BLOWER
MAINTENANCE INDICATOR
Switch monitors outside air and
exhaust bloers and motors and sends
a signal to a field supplied 24V
indicator uon amperage surge
.