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jurisdiction. USE COPPER WIRE

OnLY. Provide separate branch electric

circuit with field supplied disconnect

switch.

Location of disconnect switch to be in

clear site, accessible and in close

proximity to the unit.

Correct polarity MUST be maintained for

115 V wiring. If polarity is incorrect, unit

will nOT operate.

Use a separate fused branch electrical

circuit containing a properly sized fuse

or circuit breaker. Run this circuit directly

from the main switch box to an electrical

disconnect that is readily accessible and

located near the air handler. Connect

from the electrical disconnect to the

junction box on the left side of the air

handler, inside the blower compartment.

For the proper connection, refer to the

appropriate wiring diagram located on

the inside cover of the air handler

control box and in these instructions.

The electrical junction box may be

moved to the right side if necessary. A

knockout is provided. Seal the opposite

hole with plug provided.

Make all electrical connections in

accordance with the latest edition of the

national Electrical Code, AnSI/nFPA70

and local codes having jurisdiction.

These may be obtained from:

national Fire Protection

Association, Inc.

Batterymarch Park

Quincy, MA 02269
CSA - International

178 Rexdale Blvd.

Etobicoke (Toronto), Ontario

Canada M9W, 1R3

ELECTRICAL WIRING

TURN OFF ELECTRIC POWER AT

FUSE BOX OR SERVICE PANEL

BEFORE MAkING ANY

ELECTRICAL CONNECTIONS.

FAILURE TO DO SO CAN CAUSE

ELECTRICAL SHOCk RESULTING

IN PERSONAL INJURY OR DEATH.

THE CABINET MUST HAVE AN

UNINTERRUPTED GROUND

ACCORDING TO THE LATEST

EDITION OF THE NATIONAL

ELECTRICAL CODE (NEC), ANSI/

NFPA70- OR IN CANADA, THE

CANADIAN ELECTRICAL CODE,

CSA-C221 OR LOCAL CODES

THAT APPLY. DO NOT USE GAS

PIPING AS AN ELECTRICAL

GROUND. A GROUND SCREW IS

PROVIDED IN THE JUNCTION

BOX. FAILURE TO DO SO CAN

CAUSE ELECTRICAL SHOCk,

RESULTING IN PERSONAL

INJURY OR DEATH.

THIS AIR HANDLER IS EqUIPPED

WITH A BLOWER DOOR SAFETY

SWITCH. DO NOT DISABLE THIS

SWITCH. FAILURE TO FOLLOW

THIS WARNING CAN RESULT IN

ELECTRICAL SHOCk, PERSONAL

INJURY OR DEATH.

IMPORTANT: 

The air handler must

be installed so that the electrical

components are protected from water

(condensate).

Before proceeding with the electrical

connections, be certain that the

voltage, frequency and phase

corresponds to that specified on the

air handler rating plate. For single air

handler application, maximum over-

current protection is 15 amperes.

IF A DISCONNECT SWITCH IS TO

BE MOUNTED ON THE UNIT,

SELECT A LOCATION WHERE A

DRILL OR FASTENER WILL NOT

CONTACT ELECTRICAL OR

HYDRONIC COMPONENTS.

ELECTRICAL SHOCk CAN CAUSE

PERSONAL INJURY OR DEATH.

NOTE:

Prior to making any electrical

connections, ensure that supply

voltage, frequency, and phase are as

specified on unit rating plate.

Check to ensure that the existing

electrical service is adequate to

handle the additional load imposed by

the Hydronic Air Handler. Refer to

unit wiring diagram for proper

electrical connections.

All electrical connections MUST

comply with nEC and any other local

codes or ordinances having

!

WARNING

!

WARNING

!

WARNING

!

CAUTION

THERMOSTAT

The room thermostat must be com-

patible with the integrated air handler

control on the air handler. Generally,

all thermostats that are not of the

“current robbing” type are compatible

with the integrated air handler control.

The low voltage wiring should be

sized as shown (see Figures 12 and

13, 12A and 13A).

NOTE: 

Do not use 24 volt control

wiring smaller than no. 18 AWG.

Install the room thermostat in

accordance with the instruction sheet

packed in the box with the thermostat.

Run the thermostat lead wires inside

the blower compartment and connect

to low voltage terminals as shown on

the wiring diagram. never install the

thermostat on an outside wall or

where it will be influenced by drafts,

concealed hot or cold water pipes or

ducts, lighting fixtures, radiation from

fireplace, sun rays, lamps, televisions,

radios or air streams from registers.

Refer to instructions packed with the

thermostat for “heater” selection or

adjustment.

ACCESSORIES

FIELD-INSTALLED
OPTION ACCESSORIES

ELECTRONIC AIR CLEANER

Line voltage power can be supplied

from the screw terminal “EAC” and a

line voltage neutral screw terminal on

the control board. This will power the

electronic air cleaner whenever the

circulating air blower is in operation.

Expansion Tank: 

Expansion tank for closed systems

air separator – TACO Model 49-075.

Summary of Contents for RW1P

Page 1: ...92 24161 150 04 SUPERSEDES 92 24161 150 03 INSTALLATION INSTRUCTIONS HYDRONIC AIR HANDLER RW1T RW1P RWMV ISO 9001 2008...

Page 2: ...N MAY RESULT IN PERSONAL INJURY SHEET METAL PARTS MAY HAVE SHARP EDGES OR BURRS USE CARE AND WEAR APPROPRIATE PROTECTIVE CLOTHING CAUTION NOTICE SAFETY INFORMATION WHEN AN AIR HANDLER IS INSTALLED SO...

Page 3: ...nown to the State of California to cause cancer or birth defects such as fiberglass insulation lead in brass and combustion products from natural gas All new equipment shipped for sale in California w...

Page 4: ...ERTIFIED BY UL 1 DOOR SWITCH 2 JUNCTION BOX 3 TRANSFORMERS 4 CAPACITORS 5 LOW VOLTAGE THERMOSTAT TERMINAL 6 BLOWER 7 PUMP IF REQUIRED 8 WATER INLET OUTLET FOR 14 HAH 9 WATER OUTLET INLET FOR 14 HAH 10...

Page 5: ...UL 1 DOOR SWITCH 2 JUNCTION BOX 3 TRANSFORMERS 4 TERMINAL BLOCK 5 CONTROLBOARD 6 BLOWER 7 PUMP IF REQUIRED 8 WATER INLET OUTLET FOR 14 HAH 9 WATER OUTLET INLET FOR 14 HAH 10 BLOWER MOTOR 11 HYDRONIC C...

Page 6: ...SEALED TO PREVENT DEPRESSURIZATION OF THE SPACE AND POSSIBLE MIGRATION OF COMBUSTION BYPRODUCTS INCLUDING CARBON MONOXIDE INTO THE LIVING SPACE IMPROPER INSTALLATION OR INSTALLATION NOT MADE IN ACCORD...

Page 7: ...TY The design of air handlers with input ratings as listed in the tables under Figure 4 are certified by UL for the clearances to combustible materials shown in inches See name rating plate and cleara...

Page 8: ...SIDE OPTIONAL RETURN AIR CUTOUT EITHER SIDE A I R F L O W A B C REF D E F G H ST A1242 03 X0 Model A B C D E F RW 04A2414 14 13 13 16 13 16 19 3 3 8 RW 06A3617 17 1 2 16 1 2 16 1 2 16 13 16 19 4 5 8...

Page 9: ...llation Instructions and the Filter Pressure Drop Determine both static pressures at 1600 CFM Wet Coil Pressure Drop 0 3 in W C From Coil Manufacturer s Installation Instructions External Static Press...

Page 10: ...x 8 254 x 203 10 x 10 254 x 254 11 x 11 279 x 279 Blower Motor Type EcoTech ECM Type Pump Type Wet Rotor Pump Power Supply V HZ PH 115 60 1 Pump Motor RLA LRA Amps 1 8 Pump HP W 1 8 86 Pump Maximum Wo...

Page 11: ...ave a greater than normal resistance to air flow This can adversely affect air handler operation BE SURE TO CHECk AIR FLOW IMPORTANT When using outside air design and adjust the system to maintain a r...

Page 12: ...s or runs with many turns and elbows 2 If summer air conditioning or heat pump is desired position the indoor coil on the supply air end of the unit Insure that no air can bypass this coil 3 Connect t...

Page 13: ...nt Methods Using Straps Method 1 Use 4 8 x 3 4 sheet metal screws for each strap The straps should be vertical against the air handler sides and not pull away from the air handler sides Method 2 Fold...

Page 14: ...present the piping should be supported immediately adjacent to the component On vertical runs copper tubing should be supported at each floor level or at a maximum of every 10 feet Thermal Expansion o...

Page 15: ...an open loop system when configured to simultaneously deliver both domestic hot water and space heating By definition if the circuit is sealed off from the atmosphere at all locations as is true for m...

Page 16: ...DV3 to which a hose MUST be connected and draining to a sink drain or outdoors STEP 4 CLOSE drain valves 1 2 DV1 and DV2 and OPEn ball valve 2 BV2 STEP 5 OPEn cold water supply main valve ball valve...

Page 17: ...talled so that the electrical components are protected from water condensate Before proceeding with the electrical connections be certain that the voltage frequency and phase corresponds to that speci...

Page 18: ...olt Wiring Factory 115 Volt Wiring Junction Box L1 L2 FIGURE 13 THERMOSTAT WIRING DIAGRAMS MODULATING AIR HANDLER W SINGLE STAGE A C FIRST STAGE HEAT COOL AUX HEATING FAN 24VAC HOT 24 VAC COMMON SINGL...

Page 19: ...115 Volt Wiring Junction Box L1 L2 FIGURE 13A THERMOSTAT WIRING DIAGRAMS MODULATING AIR HANDLER W SINGLE STAGE A C FIRST STAGE HEAT COOL AUX HEATING FAN 24VAC HOT 24 VAC COMMON 24 VOLT SINGLE STAGE A...

Page 20: ...ON MODULATING NOTES 1 For proper operation of an open loop system refer to Figures 11 and 17 the jumper shunt position on PCB point P7 should be in the FS position 2 When changing shunt position ensur...

Page 21: ...BOARD MODULATING NOTES 1 For proper operation of an open loop system refer to Figures 11 and 17 the jumper shunt position on PCB point P7 should be in the FS position 2 When changing shunt position e...

Page 22: ...Turn thermostat On and switch system to the heating mode The thermostat shall be set higher than the actual room temperature this will cause the circulator to energize and initiate the heating cycle I...

Page 23: ...off the pump and go into a 5 minute delay If the supply temperature is adequate the main blower will then be energized and run for 30 seconds After the 30 second delay the control will monitor the sup...

Page 24: ...6 15 0 7 17 0 8 17 0 9 22 CFM L s Air Delivery External Static Pressure Inches Water Column kPa Low 642 339 612 322 591 311 524 273 Med low 711 377 684 362 655 346 624 329 578 303 526 274 Med high 890...

Page 25: ...ISCONNECT MAIN ELECTRICAL POWER TO THE UNIT BEFORE ATTEMPTING ANY MAINTE NANCE FAILURE TO DO SO CAN CAUSE ELECTRICAL SHOCk RESULTING IN PERSONAL INJURY OR DEATH WARNING DO NOT OPERATE THE SYSTEM FOR E...

Page 26: ...induced draft blower motor must be cleaned periodically by a qualified installer service agency or the gas supplier to prevent the possibility of overheating due to an accumulation of dust and dirt on...

Page 27: ...a d e z i s y l r e p o r p m I g n i t t e s p a t d e e p s r o t o m k c e h C w o l f r i a r o o d n i r e p o r p m I Call for domes c hot water air handler disabled un l call ends Unit is opera...

Page 28: ...MANENTLY GROUNDED AND CONFORM TO I E C N E C C E C NATIONAL WIRING REGULATIONS AND LOCAL CODES AS APPLICABLE REPLACEMENT WIRE MUST BE THE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL 105C MIN FIELD IN...

Page 29: ...29 FIGURE 21 ELECTRICAL WIRING DIAGRAM PSC MOTORS RW1P...

Page 30: ...RM TO I E C N E C C E C NATIONAL WIRI N G REGULATIONS AND LOC AL C ODES A S APPLICABLE R EPLACEMENT WIR E MUST BE THE SAME SIZE AND TYPE OF I NS ULATION AS ORIGINAL 105C MIN FIELD INS TALLED FACTOR Y...

Page 31: ...C ONFORM TO I E C N E C C E C NATIONAL WIRI N G REGULATIONS AND LOC AL C ODES A S APPLICABLE R EPLACEMENT WIR E MUST BE THE SAME SIZE AND TYPE OF I NS ULATION AS ORIGINAL 105C MIN FIELD INS TALLED FAC...

Page 32: ...32 FIGURE 24 ELECTRICAL WIRING DIAGRAM...

Page 33: ...33...

Page 34: ...34...

Page 35: ...35...

Page 36: ...36 CM 0617...

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