Reznor ACUB Option - Installation - ACU - Cased Cooling Coil - Manual

Form I-CAUA-CC, P/N 166152R4, Page 1
®
Applies to: Cased Cooling Coil for Model CAUA
(either Model ACU or Option C)
Installation
Form I-CAUA-CC (Version C.1)
Obsoletes I-CAUA-CC (Version C)
1. Description/
Application
These instructions apply to an optional cased cooling coil when installed on a
Reznor ® Model CAUA heater. See TABLE 1 below for matching the cabinet
size of the Model CAUA heater with the cooling coil. The coil may have been
ordered as either a Model ACU or an Option C to be used with R-410A refrig-
erant. Thermostatic expansion valves selected to match the coil are shipped
loose for field installation.
Installation should be done by a qualified agency in accordance with these
instructions and in compliance with all codes and requirements of authorities
having jurisdiction. Follow the instructions in installation Form I-CAUA to install
the heater. The heater should be in its final installation location (without dis-
charge ductwork) before installing the cooling coil.
Shipped with the heater is a package of parts required to install a heat section
condensate drain. When the application includes a cooling coil, installation of
the heat section condensate drain is required.
Optional
Cased
Cooling
Coil
Model
CAUA
Model CAUA Upflow Heater with Optional Cased Cooling Coil
TABLE 1 - Heater/Coil
Cross-Reference
Table
Coil Description
and Size - All coils are
for use with R-410A
refrigerant.
Heater/Coil Cross-Reference Table by Model CAUA and Cased Coil
Option C or Model ACUA, ACUB, or ACUC Cased Cooling Coil
CAUA 150 and 200 CAUA 250 and 300 CAUA 350* and 400*
ACUA 060 / Opt C060 ACUB 090 / Opt C090 ACUC 120 / Opt C120
ACUA 072 / Opt C072 ACUB 120 / Opt C120 ACUC 150 / Opt C150
ACUA 090 / Opt C090 ACUB150 / Opt C150 ACUC 180 / Opt C180
*The cased cooling coil for a CAUA 350 or 400 may include a factory-attached
discharge plenum (Option CD62). To install a cased cooling coil with a discharge
plenum, follow the instructions in this sheet plus the instructions in Form I-CAUA-
DP. Dimensions are shown in that instruction form.
Coil Description and Size
ACUA 060 or Option C060 - a cased 5-ton, single circuit or 1/3-2/3 dual circuit "A" coil.
ACUA 072 or Option C072 - a cased 6-ton, single circuit "A" coil.
ACUA, ACUB 090 or Option C090 - a cased 7.5-ton, dual (50/50 or 1/3-2/3) circuit "A" coil.
ACUB, ACUC 120 or Option C120 - a cased 10-ton, dual (50/50 or 1/3-2/3) circuit "A" coil.
ACUB, ACUC 150 or Option C150 - a cased 12-ton, dual (50/50 or 1/3-2/3) circuit "A" coil.
ACUC 180 or Option C180 - a cased 15-ton, dual (50/50 or 1/3-2/3) circuit "A" coil.
1. Description/Application ...............................1
2. Uncrating and Preparation ...........................2
3. Dimensions ...................................................2
4. Cooling Coil Installation Instructions ......3-8
4.1 Place Coil on Model CAUA Heater .............3
4.2 Thermostatic Expansion Valves .................3
4.3 Drain Line ...................................................5
4.4 Heat Section Condensate Drain .................6
4.5 Ductwork ....................................................8
4.6 Electrical Connections ...............................8
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