Carrier HRVXXLVU1330- Manuals

5 Table 3 – Standard Control MODE DEHUMIDISTAT POSITION OPERATION DAMPER POSITION FAN SPEED ON LED AIR EXCHANGE LED Off Any Off Closed to outside Off Off Off Low Satisfied Air exchange with outside Open to outside Low On On Call for dehumidification High On Intermittent Satisfied Off Closed to outsi...

6 Cooling: AUTO -- the ventilator selects the speed based on indoor humidity and outdoor temperature. It may cycle on/off every 30 minutesdepending on humidity and outside temperature.LOW -- low speed all of the time.HIGH -- high speed all of the time.If the fan speed is set to Auto and the ventilat...

7 12” (300mm) FLOW COLLAR FRONT FRESH AIR FROM OUTSIDE STALE AIR TO OUTSIDE TEMPORARYFLOW COLLAR TEMPORARY FLOW COLLAR RIGHT SIDE VIEW with vertical ducts RIGHT SIDE VIEW with horizontal ducts 36” (914mm) 36” (914mm) 12” (300mm) 36”(914mm) FRESH AIR FROM OUTSIDE STALE AIR TO OUTSIDE TEMPORARYFLOW CO...

8 12” (304 mm) 12” (304 mm) 36” (914 mm) 36” (914 mm) OR B A F G A12452 Fig. 12 -- Balancing HRVXXLVU Measure exhaust air first, it is typically the lowest pressure due tonature of system and duct work. Next, measure fresh air. If fresh air reading is higher than exhaust reading, adjust damper until...

10 CONTROL BOARD OPERATION Board Function NOTE : To ensure proper operation of HRV, configuration jumpers are located on electronic control board and must matchconfiguration setup shown on Fig. 14 under Jumper Table.Jumpers are factory set and do not require any changes unlesscontrol board is replac...

11 TROUBLESHOOTING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.Before installing or servicing system, always turn off, tag and lockout main power to system. There may be more than 1 disconnect switch. ! WARNING CUT HAZARD Failure to follow this cau...

12 Be sure to unplug and inspect the unit before proceeding with these steps. Start with problem 1, then problem 2 and so on. Table 7 – Troubleshooting Problem: Possible causes: You should try this: 1. Unit does not work. S Erratic operation of the electroniccircuit. S Unplug the unit. Wait for 30 s...

13 Override Test To use override test function, a thermistor must be connected to the control board. Unit must not be in defrost mode during an overridetest. HIGH SPEED 1. Disconnect HRV from 115VAC.1. Unplug wall control wires at control module terminal block inside HRV. 2. Plug HRV back to 115VAC....

14 If defrost is not working properly, check for proper damperoperation. To do this, turn unit to OFF position. Damper should close. Safety Feature This new control has an added safety feature. If microprocessordoes not detect the thermistor or detects a short circuit, unit will automatically go int...