Reznor R6GP User Manual

INSTALLATION

INSTRUCTION

I - SHIP PING AND PACK ING LIST

Package 1 of 1 contains:

1 - Economizer Assembly 1 - Fresh Air Hood w/ Filter 1 - Control Package 1 - Barometric Relief Hood 1 - Filter Access Panel 2 - Wire Nut (For Mixed Air Sensor)

16 - #10 x ½ x 16 Hex Tec

INSTALLATION INSTRUCTIONS FOR

559374

ECONOMIZERS USED WITH Q5SN / Q6SP 090-120

P6 / R6 120 UNITS

FORM# 571C-0411 (571C-0610)

ENTHALPY SENSOR

DAMPER MOTOR

Check contents for shipping damage. Contact the last carrier immediately if any shipping damage is found.

II - AP PLI CA TION

Economizers are used with Q5SN/Q6SP/P6/R6 units for automatic sensor-controlled introduction of outdoor air into the system through an electro-mechanically controlled damper. Outdoor air is mixed with the buildings return air to economically improve indoor air quality and aide in reducing energy costs.

Economizer slides into horizontal return air opening. Mixed air sensor, TB11, and enthalpy control board relay are shipped in economizer and must be relocated to the unit's filter section. Intake and exhaust hoods are packaged with economizers and installed according to instructions below.

III - ECONOMIZER IN STAL LA TION

1. Disconnect all power to unit.

2. Cut and discard wire tie securing wire bundle to the damper motor

Important - DO NOT cut other wires. Inspect for damaged connections or loose wires.

3. Remove box of controls to be installed over the assembly containing the logic control board and mixed air sensor. See

Figure 1.

4. Remove from box the logic control board and wire bundle. Cut wire tie securing the bundle of wires to logic control board and mixed air sensor.

5. Locate S1, the unit's economizer connection and remove the installed dummy plug. See Figure 3.

6. Connect economizer jack S2 to economizer plug P2 on the economizer assembly.

7. Route wiring to the right side of the economizer and slide it into the unit. Insert economizer side flanges into the unit standing seams. Using existing screws from bottom of discarded panel to secure economizer bottom flange to unit.

See Figure 2.

CONTROL PACKAGE (STEP 3)

Fig ure 1

INSERT THE SIDE FLANGES INTO

THE UNIT STANDING SEAMS

RETURN AIR OPENING

MULLIONS

Figure 2

INSTALLATION

INSTRUCTION

INSTALLATION INSTRUCTIONS FOR

559374

ECONOMIZERS USED WITH Q5SN / Q6SP 090-120

P6 / R6 120 UNITS

8. Position logic control board in filter access area as shown in Figure 3. Secure control board with two #10-16 x ½ screws.

9. Insert mixed air sensor tube through the mounting hole into the supply air compartment. Secure using two #10-16 x ½ screws. See Figure 3.

10. Connect economizer plug P1 to unit jack S1 on units economizer control panel.

11. Verify that wire harnesses are secure and will not interfere with economizer vane and linkage operation, or with a filter change out

Note: Leave unit dummy plug (from Step 5) in the

unit control panel for later use if the economizer needs to be by passed.

FILTER ACCESS

TB11 BOARD AND LOGIC CON TROL

MIXED AIR SENSOR

INTAKE AIR

EXHAUST AIR

ENTHALPY SENSOR

DOWN FLOW APPLICATION

12. Install barometric relief hood in front of exhaust air opening.

13. Install fresh air hood in front of intake opening.

S1 UNIT JACK

FIL TERS

DAMPER MOTOR

Figure 3

FRESH AIR HOOD

BAROMETRIC

RELIEF HOOD

Figure 4

NOTE: FOR THIS APPLICATION, HORIZONTAL

DUCT KIT #547881 IS REQUIRED.

SUPPLY DUCT

FRESH AIR HOOD

RETURN DUCT

Figure 5

30 x 16

31 x 18 ¾

559374 - 31" x 18

CUT HOLE

SCREW TO SIDE MULLIONS

FILTER ACCESS

BAROMETRIC RELIEF HOOD

14. Slide filter access panel underneath top of unit and secure to mullions.

a. For heatpump units refer to

Section IV before restoring the unit power.

15. Restore power to unit and check for proper damper operation (See System Check section).

HORIZONTAL APPLICATION

12. Install barometric relief hood to return duct over the opening in duct.

13. Install fresh air hood in front of intake opening.

14. Slide filter access panel underneath top of unit and secure to mullions.

a. For heatpump units refer to

Section IV before restoring the unit power.

15. Restore power to unit and check for proper damper operation (See System Check section).

INSTALLATION

INSTRUCTION

INSTALLATION INSTRUCTIONS FOR

559374

ECONOMIZERS USED WITH Q5SN / Q6SP 090-120

P6 / R6 120 UNITS

IV – HEAT PUMP SET UP PRO CE DURES A. Q5SN Series

Notice to Installer: Proper operation of this economizer when used on Q5SN Series 7.5 and 10 Ton Package Heat Pump systems is dependent on the type thermostat installed with the unit. Identify which type thermostat is connected to unit before making any wiring changes if needed.

Ther mo stat Type 1 – Sep a rate "O" and "B" ter mi nals for se lect ing Re vers ing Valve Con trol

Q5SN Series Heat Pump units are factory pre-wired for economizers connected in conjunction with a 2 Stage Heat / 2 Stage Cool thermostat that utilize the "O" terminal to energize the reversing valve(s) when the thermostat "System Switch" is set in the "Cool" mode and has a separate "B" terminal supplied with 24 VAC when the thermostat "System Switch" is in the Off, Heat, or Emergency Heat” mode. With "B" energized the economizer is automatically locked out during heating operation. It holds the outdoor fresh air damper at the minimum position setting only.

Ther mo stat Type 2 –Sin gle "O/B" ter mi nal for se lect ing Re vers ing Valve Con trol

If the thermostat has only one terminal, "O/B", for determining if Heat or Cool mode energizes the Reversing Valve(s), the following heat pump unit low voltage wiring changes MUST for identification)

1. DISCONNECT MAIN POWER TO THE UNIT.

2. Thermostat - Select the "Cool" mode to energize the Heat Pump unit’s reversing valve(s).

3. Heat Pump Relay - Located to the left of the Defrost Board in the unit’s main control panel.

l Reverse connections of the Orange and Yellow

wires on Heat Pump Relay terminals 1 and 4.

l Reverse connections of the White and Blue wires

on Heat Pump Relay terminals 3 and 6.

be made: (Refer to the unit wiring diagram

V - SYS TEM CHECK AND START UP PRO CE DURES

1. Disconnect main power to unit.

2. Install jumper on auxiliary contacts of blower contactor in main unit control box.

3. Turn thermostat control to “OFF” position.

4. Install jumper on damper motor terminals T and T1.

See Figure 8.

5. Restore power to unit. Damper should drive to fully opened position (requires 1 ½ minutes for full travel). Observe travel for proper damper operation.

6. Disconnect power to unit. Damper should spring return to closed position.

7. Remove T and T1 jumper on damper motor, then restore power to unit. Adjust minimum vent position on potentiometer on damper motor. See Figure 8.

8. Set the outdoor air enthalpy change overpoint. Refer to Figure 6 and the instructions on Page 4.

9. Disconnect power to unit and remove jumper on auxiliary contacts of blower contactor in main unit control box. Restore power to unit.

10. Set the minimum damper position. See instructions on

Page 5 and 6 and the chart on the last page.

VI - MAIN TE NANCE

1. Damper motor is prelubricated and does not require further lubrication.

2. Make visual inspection of dampers and linkage assemblies during routine maintenance.

3. Filters should be checked periodically and cleaned when necessary.

4. The washable filters supplied with the economizer can be cleaned with water and a mild detergent.

5. Take note of "Air Flow Direction" marking on filter frame when reinstalling.

4. Low Voltage Terminal Board - Jumper "O" and "B" terminals. Located in the Electric Heat Section of unit.

B. Q6SP Series

The Q6SP Series heatpumps are factory wired for use with an"O" terminal that is energized in cooling mode. These units do not require or utilize a "B" terminal signal. Do not alter the factory wiring of the Q6SP units for use with this economizer

6. If filter must be replaced, filter of like kind and size must be used. DO NOT replace permanent filters with throwaway type filters.

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