Reznor RXH (Outdoor PreevA) Unit Installation Manual - Manual (Page 5)

Form I-RDH/REH/RHH/RXH (12-14), P/N 215210 R14, Page 5
Field-Installed Accessories - If your unit was ordered with Option UV2, UVC lights
in the cooling coil module, the bulbs and a box of parts are shipped in the blower com-
partment for field installation. Being careful not to touch the bulbs, verify the compo-
nents with the instruction sheet included with the parts.
Before beginning installation, be sure that all shipped-separate options ordered are
available at the site. Field-installed, shipped-separate options could include a roof
curb, an outside air hood, a vent cap, an energy recovery unit, a VFD, a thermostat
or other wall-mounted control, a remote console, a disconnect switch, a fill and drain
or freeze protection kit, a water hammer arrestor, a firestat, and/or a smoke detector.
Storage and Startup - If this unit is going to be stored, take precautions to prevent
condensate formation inside the electrical compartments and motors. To prevent dam-
age to the unit, do not store sitting on the ground.
After the system has been moved to its installation site, remove all of the shipping
brackets and check the blower for free movement. See the check lists in Paragraph 9.0
before starting the unit and completing the Startup Form.
TABLE 1- Shipped-Separate or Shipped-Loose Components for Factory-Installed Options
4.0 Clearances and
Dimensions
4.1 Clearances
For safety and convenience, provide clearances as shown in the following table.
Clearance to combustibles is defined as the minimum distance from the heater to a
surface or object that is necessary to ensure that a surface temperature of 90°F above
the surrounding ambient temperature is not exceeded. Minimum clearances are also
listed on the heater rating plate.
TABLE 2A - Minimum
Clearances from
Combustible Material
Recommended Service Clearances by Model and Size
Model and Size Control Side Side
Opposite
Controls
Top
RDH REH RHH RXH
Control Side
(Basic)
Control Side with
Mixing Box
Control Side with
Cooling Coil*
inches mm inches mm inches mm inches mm inches mm
75/100 10A/20A/30A -- 000A 30 762 30 762 42 1067 6 152 18 457
125/150 15B/30B/60B -- 000B 34 864 34 864 52 1321 6 152 18 457
175/200/ 225 N/A 130/180 000C 30 762 30 762 42 1067 6 152 24 610
250/300 30D/60D/90D/120D 260 000D 42 1067 42 1067 58 1473 6 152 24 610
350/400A 40E/80E/120E 350 000E 52 1321 52 1321 66 1676 6 152 24 610
Minimum Clearances to Combustibles - ALL Sizes of Models RDH, REH, RHH
Control Side Side Opposite Controls Front Rear Top Bottom
inches 20 6 48 18 6 0
mm 508 152 1219 457 152 0
TABLE 2B - Recommended Service Clearances
*Clearance is required for sliding out drain pan.
Factory-Installed
Option
Option Parts Requiring Installation (Parts are either shipped loose with the heater or shipped separately.)
AG3, AG60
On/Off Control Switch, P/N 39732; Discharge Air Sensor Holder, P/N 115850; Discharge Air Sensor Holder Bracket,
P/N 213612
AG15, AG61
On/Off Control Switch, P/N 39732; Remote Ductstat Temperature Selector, P/N 115848; Stage Adder Module(s),
P/N 115849; Discharge Air Sensor Holder, P/N 115850; Discharge Air Sensor Holder Bracket, P/N 213612
AG16, AG62
On/Off Control Switch, P/N 39732; Remote Temperature Selector, P/N 115848; Stage Adder Module(s), P/N 115849;
Digital Temperature Display, P/N 115852; Discharge Air Sensor Holder, P/N 115850; Discharge Air Sensor Holder
Bracket, P/N 213612
DG1, DG2 Room Command Module, P/N 211423
DG5, DG6
Room Command Module, P/N 211424; Discharge Air Sensor Holder, P/N 115850; Discharge Air Sensor Holder
Bracket, P/N 213612
AG58, D12B, D12C,
D12D, D12E, D12G Discharge Air Sensor Holder, P/N 115850; Discharge Air Sensor Holder Bracket, P/N 213612
GE10 Potentiometer, P/N 16110
GE15 Pressure Null Switch, P/N 88052
GE21 Enthalpy Sensor and Parts to install, P/N 220686
GE22 Two Enthalpy Sensors and Parts to install, (2) P/N 220686
AU7L, AU7R
Duct Humidity/Temperature Sensor, P/N 206081; Mounting Bracket, P/N 207499
( NOTE: These will be factory installed if mixing box, Option MXB1, is ordered.)