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MODELS RXRD-NDCM3 & RXRD-NFCM3
HORIZONTAL AIRFLOW ECONOMIZERS
WARN ING
THIS ACCESSORY IS TO BE INSTALLED BY A QUALIFIED, LICENSED SERVICE PERSON. TO AVOID
UNSATISFACTORY OPERATION OR DAMAGE TO THE PRODUCT AND POSSIBLE UNSAFE CONDITIONS,
INCLUDING ELECTRICAL SHOCK, REFRIGERANT LEAKAGE AND FIRE, THE INSTALLATION
INSTRUCTIONS PROVIDED WITH THIS ACCESSORY MUST BE STRICTLY FOLLOWED AND THE PARTS
SUPPLIED USED WITHOUT SUBSTITUTION. DAMAGE TO THE PRODUCT RESULTING FROM NOT
FOLLOWING THE INSTRUCTIONS OR USING UNAUTHORIZED PARTS MAY BE EXCLUDED FROM THE
MANUFACTURER'S WARRANTY COVERAGE.
WARN ING
DISCONNECT ELECTRICAL POWER TO THE UNIT. FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCK
RESULTING IN PERSONAL INJURY OR DEATH.
" elec tric drill with
3
8
Wa ter proof ex te rior duct seal ant
TABLE 1
PACK AGE CON TENTS
ITEM
Discharge Air Sensor (Hardware Bag)
1
(2) Permanent Filters
2
(2) Spotweld Assy - Bird Screen
3
(2) Exhaust Air Rainhood - Top
4
OA Rainhood Assy - Left Side
5
OA Rainhood Assy - Right Side
6
(2) Exhaust Air Rainhood - Left Side
7
(2) Exhaust Air Rainhood – Right Side
8
OA Rainhood Assy - Filter Bracket Strip
9
OA Rainhood Assy – Top
10
OA Rainhood - Front Filter Support
11
OA Filter Rail
12
Hardware Bag
13
INSTALLATION INSTRUCTIONS
TOOLS RE QUIRED FOR IN STAL LA TION:
" socket
5
16
DE SCRIP TION
Small flat blade (0.125" wide) screw driver
Sheet metal tools (e.g. shears)
RXRD-NDCM3
economizer with
controller, actuator,
and outside enthalpy
sensor attached
PART No.
6039413 / 3112
6039413 / 8567
(11.875" X 23.875")
6039413 / BSWA
6039413 / EHT2
6039413 / EHSL
6039413 / EHSR
6039413 / EHS3L
6039413 / EHS3R
6039413 / ADP
6039413 / EHT
6039413 / EHB
6039413 / FCH
6039413 / HDW
RXRD-NFCM3
economizer with
controller, actuator, and
outside enthalpy sensor
attached
PART No.
6039415 / 3112
6039415 / 8568
(23.875" X 23.875")
6039415 / BSWA
6039415 / EHT2
6039415 / EHSL
6039415 / EHSR
6039415 / EHS3L
6039415 / EHS3R
6039415 / ADP
6039415 / EHT
6039415 / EHB
6039415 / FCH
6039415 / HDW
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Related Manuals for Rheem RXRD-NDCM3
Summary of Contents for Rheem RXRD-NDCM3
- Page 1 INSTALLATION INSTRUCTIONS MODELS RXRD-NDCM3 & RXRD-NFCM3 HORIZONTAL AIRFLOW ECONOMIZERS WARN ING THIS ACCESSORY IS TO BE INSTALLED BY A QUALIFIED, LICENSED SERVICE PERSON. TO AVOID UNSATISFACTORY OPERATION OR DAMAGE TO THE PRODUCT AND POSSIBLE UNSAFE CONDITIONS, INCLUDING ELECTRICAL SHOCK, REFRIGERANT LEAKAGE AND FIRE, THE INSTALLATION INSTRUCTIONS PROVIDED WITH THIS ACCESSORY MUST BE STRICTLY FOLLOWED AND THE PARTS SUPPLIED USED WITHOUT SUBSTITUTION.
- Page 2 STEP 3: Fasten RETURN COVER (SEE FIGURE 2) over bottom return opening using retained screws (2 on RXRD-NDCM3, 4 on RXRD-NFCM3). STEP 4: Remove screws from 3 sides of ROOF PANEL so that it can be raised during economizer insertion.
- Page 3 Re-secure ROOF PANEL using existing screws. Fasten OA RAINHOOD - LEFT SIDE and RAINHOOD - RIGHT SIDE to unit using screws provided (2 each on RXRD-NDCM3, 3 each on RXRD-NFCM3). STEP 10: Slide PERMANENT FILTERS between RAINHOOD - LEFT SIDE and...
- Page 4 STEP 15: FIGURE 4 Provide opening in return air duct to mount the two barometric relief dampers and hoods (SEE FIGURE 4). Locate a convenient distance from unit. STEP 16: Using self-drilling screws provided, assemble exhaust air rain hoods ( EXHAUST AIR RAINHOOD –...
- Page 5 DI RECT MOUNT ECONOMIZER SE QUENCE OF OP ER A TION B. Range of adjustment is from 0-100% (2-10V); in GEN ERAL most applications the minimum position is adjusted to allow 10% to 25% outside air to enter This accessory economizer package is designed to save the system.
-
Page 6: Normal Operation
F. The controller compares the CO sensor input to FIGURE 7 the setpoint setting to determine the damper minimum position. a. If the actual CO level is below the setpoint, then the damper minimum position is determined by the damper minimum position potentiometer setting. -
Page 7: Troubleshooting
TROU BLE SHOOT ING 1. Checkout requires a handheld multimeter, 9V battery, a 5.6k ohm .25 watt resistor, a 1.2k ohm .25 watt resistor, a jumper wire with .25" quick connect terminals, and the 620 ohm resistor that is factory-installed across terminals SR+ and SR. The terminal names below reference the economizer controller. - Page 8 BASIC ECONOMIZER OPERATION Reapply Power to the Unit START Perform STEP 2 Perform STEP 3 Put thermostat fan setting to "CONTINUOUS FAN" Set thermostat so neither heating or cooling is called Connect Economizer Wire Harness to Unit Check Thermostat Connections 24 VAC power Check for 24 VAC at Unit Transformer available between terminal TR and TR1?
-
Page 9: Heat Pump Operation
HEAT PUMP OPERATION (Perform BASIC ECONOMIZER OPERATION check first) START Perform STEP 2 Perform STEP 3 Reapply Power to the Unit Put thermostat fan setting to "CONTINUOUS FAN" Turn down thermostat setting so that a call for cooling is present. Set enthalpy potentiometer on economizer controller to A (fully CCW). - Page 10 Use the following graph and the multimeter to verify proper operation of the mixed air / discharge air temperature sensor. Measure the resistance (ohms) of the mixed air / discharge air temperature sensor with the multimeter. Look up the equivalent temperature on the graph. This should be the same as temperature the mixed air / discharge air sensor is detecting.
- Page 11 Re vi sion Change Date COMPONENT CODE WIRE COLOR CODE Changed Mixed Air Sensor 02-23-06 9RT1H Mixed Air Sensor Black Blue C7400A Fresh Air Sensor BRN Brown GRN Green Ex changed wire 3 & 4 03-29-06 Power Exhaust Cap GRY Gray ORG Orange MS7106K Damper Actuator 24v...
- Page 12 SUPERCEDES 08-18-11 MAY 2, 2013 RMIHE13...