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7

Ultra-Aire SD12 Installer’s & Owner’s Manual

FOR HVAC INSTALLER ONLY

3.3 Line Set Installation

The installer must supply a line set (1/4” liquid line, 3/8” gas line) 
suitable for use with R410a refrigerant to connect the indoor unit to 
the outdoor unit. 

The maximum allowable length of the line set 

is 50 feet.

 The installer must braze the lines to the dehumidifier 

and the condensing unit. The gas (suction) line must be insulated to 
prevent the formation of condensation on the outside of the line.

Line Set Isolation — See FIGURE 7 for examples of proper refrigerant 
line set installation.

When installing the line set:

• Make sure the lines are suitable for use with R410a.
•  Do not crush the lines and always allow a minimum bend radius of 

2 inches.

•  Keep the ends of the lines covered to prevent dirt and debris from 

entering the lines during installation.

•  Secure the line set to the building with isolating hardware to  

prevent vibration transmission to the building.

•  Seal and isolate the opening(s) where the line set is routed into the 

building.

•  Insulate the gas (suction) line to prevent water condensation on the 

gas line.

•  Flush the lines with an inert gas before and/or during brazing to 

prevent oxidation inside the lines.

•  Release the inert gas holding charge and remove the plugs in the 

dehumidifier lines before brazing.

•  Do not overheat the lines connected to the dehumidifier or the 

condensing unit when brazing.

•  Be aware of the relative location of the dehumidifier (Indoor unit) 

and condensing unit (Outdoor Unit) when installing the line set. 

See illustrations below:

30 FT

MAX

CONDENSING

UNIT

DEHUMIDIFIER

Line Set Isolation — The following illustrations are examples of proper refrigerant line set isolation.

REFRIGERANT LINE SET — TRANSITION

FROM VERTICAL TO HORIZONTAL

REFRIGERANT LINE SET — INSTALLING

HORIZONTAL RUNS

To hang line set from joist or rafter, use either metal 
strapping material or anchored heavy nylon wire ties.

ANCHORED HEAVY NYLON
WIRE TIRE OR AUTOMOTIVE

MUFFLER-TYPE HANGER

AUTOMOTIVE

MUFFLER-TYPE HANGER

WALL
STUD

STRAP LIQUID LINE TO
VAPOR LINE

LIQUID LINE

VAPOR LINE-WRAPPED
IN ARMAFLEX

NON-CORROSIVE
METAL SLEEVE

VAPOR LINE WRAPPED
WITH ARMAFLEX

LIQUID LINE

CALK

PVC
PIPE

FIBERGLASS
INSULATION

OUTSIDE

WALL

8 FEET 

STRAPPING

MATERIAL (AROUND

VAPOR LINE ONLY)

WIRE TIE (AROUND
VAPOR LINE ONLY)

TAPE OR
WIRE TIRE

NON-CORROSIVE
METAL SLEEVE

8 FEET 

TAPE OR
WIRE TIRE

FLOOR JOIST OR
ROOF RAFTER

FLOOR JOIST OR

ROOF RAFTER

STRAP THE VAPOR LINE TO THE 
JOIST OR RAFTER AT 8 FEET 
INTERVALS THEN STRAP THE LIQUID
LINE TO THE VAPOR LINE.

Line Set Isolation — The following illustrations are examples of proper refrigerant line set isolation.

REFRIGERANT LINE SET — TRANSITION

FROM VERTICAL TO HORIZONTAL

REFRIGERANT LINE SET — INSTALLING

HORIZONTAL RUNS

To hang line set from joist or rafter, use either metal 
strapping material or anchored heavy nylon wire ties.

ANCHORED HEAVY NYLON
WIRE TIRE OR AUTOMOTIVE

MUFFLER-TYPE HANGER

AUTOMOTIVE

MUFFLER-TYPE HANGER

WALL
STUD

STRAP LIQUID LINE TO
VAPOR LINE

LIQUID LINE

VAPOR LINE-WRAPPED
IN ARMAFLEX

NON-CORROSIVE
METAL SLEEVE

VAPOR LINE WRAPPED
WITH ARMAFLEX

LIQUID LINE

CALK

PVC
PIPE

FIBERGLASS
INSULATION

OUTSIDE

WALL

8 FEET 

STRAPPING

MATERIAL (AROUND

VAPOR LINE ONLY)

WIRE TIE (AROUND
VAPOR LINE ONLY)

TAPE OR
WIRE TIRE

NON-CORROSIVE
METAL SLEEVE

8 FEET 

TAPE OR
WIRE TIRE

FLOOR JOIST OR
ROOF RAFTER

FLOOR JOIST OR

ROOF RAFTER

STRAP THE VAPOR LINE TO THE 
JOIST OR RAFTER AT 8 FEET 
INTERVALS THEN STRAP THE LIQUID
LINE TO THE VAPOR LINE.

4033179

1

COMPRESSOR

COND.

RELAY

COND.

RELAY

COIL

115 VAC

LINE    NEUTRAL

BLK

RED

BRN

WHT

BLK

BRN

RED

WHT

RUN

CAP.

WHT

BLK

BLK

3

4

5

6

7

RUN

CAP.

BLOWER

24VAC SIGNAL

FROM DEHU.

2

S

C

R

1

3

FIGURE 6: CONDENSING UNIT WIRING DIAGRAM

FIGURE 7A: REFRIGERANT LINE SET – TRANSITION 

FROM VERTICAL TO HORIZONTAL

FIGURE 7B: REFRIGERANT 
LINE SET THROUGH  
OUTSIDE WALL

FIGURE 7C: REFRIGERANT LINE SET –  

INSTALLING HORIZONTAL RUNS

FIGURE 8A

Содержание SD12

Страница 1: ...her temperature to provide additional cooling if needed By eliminating the HVAC system s need to control latent load the Ultra Aire SD12 allows the system to work more efficiently Fresh Air Ventilatio...

Страница 2: ...tallation in an Attic with an Existing Forced Air HVAC System 13 3 9F Installation in a Structure with Two Forced Air HVAC Systems 13 3 9G Installation in a Structure with No Existing Forced Air HVAC...

Страница 3: ...y before installing and operating this device Proper adherence to these instructions is essential to obtain maximum benefit from your Ultra Aire SD12 indoor air quality system WARNING IMPROPER INSTALL...

Страница 4: ...ed living area or above an area where water leakage could cause damage Place the Ultra Aire SD12 on supports that raise the base of the unit 2 5 above the drain pan beneath it Raising the Ultra Aire S...

Страница 5: ...IN DAMAGE TO ROOF SURFACE Mount the base of the condensing unit to a sturdy level pad or bracket using 3 8 10mm bolts The condensing unit may be mounted to a wall with brackets or placed on a roof En...

Страница 6: ...sunlight or near a pool or spa The installer must supply the control wiring between the Ultra Aire SD12 dehumidifier the condensing unit the remote control and any electrical accessories Carefully rou...

Страница 7: ...er use either metal strapping material or anchored heavy nylon wire ties ANCHORED HEAVY NYLON WIRE TIRE OR AUTOMOTIVE MUFFLER TYPE HANGER AUTOMOTIVE MUFFLER TYPE HANGER WALL STUD STRAP LIQUID LINE TO...

Страница 8: ...stub tubes of condensing unit These service ports can be used to introduce and release nitrogen during brazing Use the following procedure to connect the line set to the Dehumidifier CAUTION THE DEHU...

Страница 9: ...COVERED RESPONSIBLY FAILURE TO FOLLOW THIS WARNING MAY RESULT IN PERSONAL INJURY OR DEATH 1 Connect the HFC 410A manifold gage set high pressure hose to the service port on the suction gas line Note C...

Страница 10: ...to charge the system FOR HVAC INSTALLER ONLY 3 7 Charging the System The condensing unit is pre charged with 42 oz of HFC 410A refrigerant The installer will add HFC 410A refrigerant for the dehumidif...

Страница 11: ...parate supply duct from the Ultra Aire SD12 to each isolated area is recommended DO NOT draw air directly from the kitchen laundry or isolated basement You may draw air from a basement that is open to...

Страница 12: ...ter enclosure of the unit The 6 round collar includes a manual damper Adjust the manual damper to provide the desired amount of fresh air for ventilation The amount of fresh air should be based on the...

Страница 13: ...the struc ture such as bedrooms den etc By ducting this way the air inside the structure will circulate through the Ultra Aire SD12 to be filtered and dehumidified Avoid discharging all the air from...

Страница 14: ...AMAGE the transformer Dehumidifier on Connect yellow and blue wires Fan only on Connect yellow and green wires Accessory power 24volt AC power supply available for HVAC accessories between yellow and...

Страница 15: ...t 35 min 70 max Auxillary Relay Capacity 5 Amps 24VAC Temp Range Accuracy 30 90 F 2 F Size 4 95 L x 1 06 W x 4 19 H Major Operations n Digital control of Relative Humidity Digital Set Point n Fan Filt...

Страница 16: ...during the seasons when there are many particles in the outdoor air 6 5 Condensing Unit Maintenance The compressor and fan motor inside the condensing unit are permanently lubricated for many years o...

Страница 17: ...nplugged or no power to outlet 2 Loose connection in dehumidifier fan circuit 3 Obstruction prevents fan impeller rotation 4 Defective fan 5 Defective fan relay 6 Defective impeller run capacitor Low...

Страница 18: ...t be replaced if continuity exists across its terminals If there is no needle movement with the meter set on the Rx100000 FOR HVAC INSTALLER ONLY scale the capacitor is open and must be replaced 4 Mar...

Страница 19: ...or and an over sized liquid line filter In a running burn out install an oversized suction line filter drier be tween the accumulator and compressor Thoroughly flush the accumu lator with refrigerant...

Страница 20: ...ng is correct and that voltage is present at the damper motor 2 Check for any obstruction inside the damper If the electric ventilation damper fails to operate after performing these checks it must be...

Страница 21: ...CE PARTS LIST Condensing Unit Item Part No Qty Description 2 4033211 1 Nut 3 4033212 1 Fan Axial 16 4033213 1 Compressor 20 4033214 1 Capacitor 23 4033216 1 Capacitor Fan Motor 30 4033215 1 Motor 31 4...

Страница 22: ...mounting hardware from inside the rectangle opening Mount the duct collars to the front of the dehumidifier using screws provided Collars and hardware are located here Door Install Insert tab on the...

Страница 23: ...osts related to changes to a Product or Component that may be required by any codes laws or regulations that may become effective after initial purchase of the Product by Customer Customer Responsibil...

Страница 24: ......

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