series 14r installation instructions and field service checklist · 2016. 5. 4. · optional: etd-1...

1© 2013 Maxitrol Company, All Rights Reserved

DESCRIPTION

Selectra Series 14R electronic gas flame modulation systems are designed primarily for make-up air heating, as components of direct fired equipment. They may be field installed on existing equipment or specified for new equipment installation.

The system uses Modulator or Modulator-Regulator valves, amplifiers which include low-fire start, and integral or remote temperature selection and a discharge air temperature sensor that is mounted within a mixing tube.

SYSTEM COMPONENTS

A1014R AmplifierA1014R (all remote temperature ranges)

Included Integral Ranges:40º to 80ºF 55º to 90ºF

90º to 140ºF110º to 160ºF 160º to 210ºF

Remote Temperature SelectorsTD114...................55° to 90°F w/override

0° to 40°F over set pointTD114A................................ 80° to 130°FTD114A-1...........80° to 130°F w/override

0° to 40°F over set pointTD114B................................120 to 170°FTD114C..............................160° to 210°FTD114D..............................200° to 250°FTD114E..............................100° to 250°FTD114F..............40° to 80°F w/override

0° to 40°F over set point TD114G...............................90° to 140°FTD114-1........55° to 90°F w/120° to 170°F override, use w/TS114TD114-2...........55° to 90°F w/two outputsTD114G-2........90° to 140°F w/two outputs

Remote Temperature Selectors Continued

IMPORTANT: The A1014R integral or remote temperature selector’s (TD114) temperature range must match the temperature sensor’s (TS114) temperature range. See page 7 for available integral dial ranges.

Optional: ETD-1 enclosure, EFP-1 cover plate only - no enclosure

Discharge Air Temperature Sensors: use with Mixing Tube

TS114..........................................................................55° to 90°FTS114A.....................................................................80° to 130° FTS114B....................................................................120° to 170° FTS114C....................................................................160° to 210° FTS114D..................................................................200° to 250° FTS114E..................................................................100° to 250° FTS114F.....................................................................40° to 80° FTS114G....................................................................90° to 140° FTS114J.................................110° to 160° F, use w/ AD1014-1116, TS214__...........................dual sensor - any combination of 2 standard ranges available

Example 1 - TS214G....................55° to 90° F and 90° to 140° F, use w/TD114 & TD114G, or TD214G (selector w/switch).

Example 2 - TS214AD..................80° to 130° F and 200° to 250° F, use w/TD114A & TD114D, or TD214AD (selector w/ switch).

Mixing Tubes: (and sensor)

Lengths:MT1-9 or 2-9............................9” MT1-12 or 2-12......................12” MT1-23 or 2-23......................23” MT1-28 or 2-28......................28” MT1-57...................................57”

Valves

Pipe Sizes:M411........................... 3/8” & 1/2”M511...........................1/2” & 3/4”M611 ............................3/4” & 1”MR212D...................1”, 1¼”, 1½”MR212E.........................1½” & 2”MR212G....................... 2½” & 3”MR212J.......................4” flanged

2 Speed Blower or Dual Fuel Operation:MR212D-2................1”, 1¼”, 1½”MR212E-2.....................1½” & 2”MR212G-2.....................2½” & 3”MR212J-2....................4” flangedNOTE: M (Modulator) valve requires an

upstream pressure regulator for low fire & high fire settings. MR (Modulator/Regulator) valve requires no upstream pressure regulator up to 5 psi inlet.

TABLE OF CONTENTSSystem Components....................................................................1Dimensions..................................................................................2Specifications................................................................................3Installation of Components............................................................3Wiring Diagrams............................................................................4Settings..........................................................................4-5Valve Adjustments.........................................................................5 Field Service Checklist.................................................................6Preliminary Circuit Analysis.........................................................7Label Instructions..........................................................................7

Read these instructions carefully and completely before installing or operating. Failure to follow them could result in a fire or explosion causing property damage, personal injury, or loss of life. The product must be installed and operated according to all local regulations.

Service and installation must be performed by a trained/experienced service technician.

Series 14R Installation Instructions and Field Service Checklist


2.96(75)

4.13 (105)

2.62(67)

4.51 (115)

2.25(57)

1.34

(34)

0.5(13)

1.03 (26)

MOUNTING HOLE4-PLACES

3 (76)REF.

4.19(106)

2.5 (63)REF.

1.25 (32)

1.5 (38)

MOUNTING HOLE4-PLACES

4.19(106)

4.19(106)

3 (76) REF.

1.88

(48)

#10-12 X 1/2” LG.BINDING HD. SHEET

METAL SCREWS (2-REQ’D.)

#10-16 X 1/2” LG.BINDING HD. SHEET METAL SCREW (2-REQ’D.)

1 (25) DIA.

LENGTH SEE PAGE 1)

1.56(40)

DIMENSIONS

OPTIONAL SYSTEM COMPONENTS

Dual Temperature SelectorTD214_ or _X*, or AD1214_,TD114HD (use w/TS114): door closed 55° to 90°F; open 90° to 140°F, TD214__: dual selector w/switch (any combination of 2 standard ranges available): Provides dual control for door heaters, or other applications such as paint spray booths.Example 1: TD214G: 55°-90°F (spray) and 90°-140°F (dry), use with TS214G. Example 2: TD214AD: 80°-130°F and 200°-250°F, use with TS214AD. *NOTE: In model numbers TD214__X , “X” denotes no enclosure.

Inlet Air Temperature Sensors: use with Mixing TubeTS10765A (8:1 ratio), TS10765B (5:1 ratio), TS10765C (3.5:1 ratio):Provides inverse change in discharge air for each degree change in inlet air - when installed in a convenient duct location upstream of the burner.

Room Override Thermostat

T115 (40° to 90° F): Provides space temperature control by raising the discharge air temperature to a pre-selected point when used in conjunction with the remote temperature selectors TD114, TD114F, TD114-1, or TD114A-1.

Figure 1: A1014R (front and side)

Figure 2: ETD-1

Figure 3: Mixing Tubes

Figure 4: T114 Figure 5: TD114

© 2

013

Max

itrol

© 2

013

Max

itrol

© 2

013

Max

itrol

© 2

013

Max

itrol

© 2

013

Max

itrol

1.5 (38)

4.19 (106)

1.25

(32)

2.5 (63)REF.

4.69

(119)

1.69

(43)1.41 (36)

2.56 (65)

3.46 (88)3.25 (83) 3

(76)1.5

(38)

0.19

(4.8)

2.25 (57)

2.62 (67)

2.62

(67)

1.75(44)

inches (millimeters)



inches (millimeters) inches (millimeters)


SPECIFICATIONS Power Requirements24 VAC, 50/60 Hz Class II transformer

GasesSuitable for natural, manufactured, mixed gases, liquefied petroleum gases, and LP gas-air mixtures.

Ambient LimitsOperating.............................................-40o to 125o F (-40o to 52o C) Non-operating......................................-50o to 185o F (-46o to 85o C)

Vent M411, 511, 611: vertical vent outlet 1/8” NPT - 12A06 installed. MR212: two vents located in upper housing, both equipped with vent limiting means

Pressure Limits Maximum Discharge PressureM411, 511, 611.......................................................7” w.c. (1.7 kPa)

Static Pressure Rating M411, 511, 611......................................................5.0 psi (34.5 kPa)

Maximum Operating Inlet PressureM411, 511, 611........................................................1.0 psi (7.0 kPa) MR212..................................................................5.0 psi (34.5 kPa)

Maximum Emergency Exposure*M411, 511, 611....................................................3.0 psi (21.0 kPa) MR212...............................................................12.5 psi (86.2 kPa) * May not function properly at this pressure, but will suffer no internal damage

INSTALLATION OF COMPONENTS

Amplifier / Amplifier-Selector: Contains the wiring terminals and sensitivity adjustment - install in any convenient location that is protected from the weather and contaminated atmosphere.

Remote (or Dual) Selector: Install in control cabinet or other chosen location. NOTE: Suffix letters must match, e.g. TS114A must be used with TD114A. For wiring runs longer than 200 ft. substitute ES261-1/ES261-2 for TD114. The ES261s are a 2-piece version of the TD114. ES261-1 is a temperature setting dial only, ES261-2 must be mounted at furnace location.

Discharge Temperature Sensor / Mixing Tube Assembly: Sensor housed in mixing tube, install in discharge air stream.

Dual Temp. Selector (optional): See preceding Remote/Dual Selector.

Room Override Stat (optional): Mount in heated area not in direct path of discharge air stream.

Inlet Air Sensor (optional): Install in convenient location upstream of burner, in intake air duct.

GAS TRAINS Modulator (M) or Modulator-Regulator (MR) ValveMount in upright position in horizontal run of pipe, downstream of other controls. A separate gas pressure regulator must be used with any modulator (M) valve.

AUTOMATIC SAFETY SHUT-OFF VALVE

AUTOMATIC SAFETY SHUT-OFF VALVE

NOTICE

Wiring Run: Control wires connected to the Override Stat, Discharge Air Sensor, or Remote Temperature Selector must not be run close to or inside conduit with power or ignition wires. Doing so may cause the unit to function erratically or may destroy the amplifier. If shielded wires are used, shield must be insulated and grounded at the amplifier location only. If control wiring is inside conduit with line voltage wiring, use shielded cable up to 100 ft. For best results up to 200 ft., run control wiring in separate conduit. For longer runs see Remote Selector below.

NOTICE

Transformer secondary must not be grounded in any portion of the circuit external to a Maxitrol amplifier. If existing transformer is grounded, a separate, independent transformer must be used. Electrical interference may affect performance and/or damage equipment.

Figure 6: MR Valve - Modulator-regulator valve

Figure 7: M Valve - Regulator upstream of modulator valve

© 2

013

Max

itrol

© 2

013

Max

itrol

WIRING DIAGRAMS

SETTINGS

Sensitivity Adjustment

The sensitivity control will allow the user to control the response of the system. Caution should be exercised in the use of this adjustment. Under normal usage the pointer should be in line with the mark on the label.

If hunting (oscillation) is encountered, rotating the sensitivity adjustment counter-clockwise will dampen the oscillation - stabilizing the flame (see Figure 11).

DO NOT adjust unless necessary. Decreasing the sensitivity can increase the temperature “DROOP” of the system.

Integeral or Remote Temperature Dial Selection (TDS): The desired discharge temperature can be selected using the amplifiers integral temperature dial or connecting a TD114 Remote Temperature Selector to terminals 1 & 2.

Set dipswitch #1 to the desired temperature setting selection mode (see Figure 12, page 5). Placing dipswitch #1 in the “UP” position enables the integral dial. Placing dipswitch #1 in the “DOWN” position enables the remote dial. The amplifier will only respond to the dipswitch’s selected temperature setting method, integral or remote.

IMPORTANT: The A1014R integral or remote temperature selector’s (TD114) temperature range must match the temperature sensor’s (TS114) temperature range. See page 7 for available integral dial ranges.

Sensitivity Adjustment

Integral Discharge Temperature Dial

Power Indicator

© 2013 Maxitrol Company, All Rights Reserved 4

TDS Dipswitch LFS Dipswitch

TRANSFORMER

TS114& MIXING TUBE

T115 OVERRIDE

TD114 SELECTOR

VALVE

TD114 SELECTOR(OPTIONAL)

TS114& MIXING TUBE

TS10765 & MIXING

TUBE

VALVE

TRANSFORMER

TS114& MIXING TUBETD114

SELECTOR(OPTIONAL)

VALVE

Figure 8: A1014R Figure 9: A1014R W/ Room Override Figure 10: A1014R W/ Inlet Air Sensor

Figure 11: A1014R Model Amplifier

Enlarged View, see Figure 12, page 5

© 2013 Maxitrol© 2013 Maxitrol© 2013 Maxitrol

© 2013 Maxitrol

1 1 1 1 1 12 2 2 2 2 23 3 3 3 3 3


Low Fire Start (LFS) Time Adjustment

The low fire start duration can be set to 0 or approximately 10 seconds and begins timing after the amplifier has been energized.

The time is set by placing DIP Switch #2 to the appropriate position. LFS: Up = 10 Seconds, Down = 0 Seconds.

The M/MR valve remains in the low fire setting position during the low fire start time period.

B

A

1

2

MODULATOR

A B

D

C

VALVE ADJUSTMENTS

See bulletin MMR_MT_EN for additional M/MR valve information

NOTE: Low fire adjustment should be checked whenever the high fire adjustment is changed.

MR 212 VALVERefer to Figure 13 for the following procedures.High Fire Manifold Adjustments:

1. Disconnect wires from amplifier terminal 4 (see Figure 11, page 4). This causes the valve to call for continuous high fire.

2. Remove seal cap (A), and turn regulator pressure adjusting screw to obtain desired manifold pressure. (Clockwise rotation increases pressure.)

3. Reconnect the wires to amplifier terminal 4.

NOTE: If low fire bypass is on maximum, the desired high fire outlet pressure may not be achieved.

Low Fire or Bypass Adjustments

1. Disconnect wire from amplifier terminal 8 (see Figure 11, page 4). This causes the valve to call for continuous low fire.

2. Remove cap (B), and loosen lock screw (C). Turn (D) to desired low fire adjustment. (Clockwise rotation reduces minimum flow rate.)

3. Tighten set screw (C), replace cap (B) and reconnect wire to amplifier terminal 8.

M411, 511, 611 VALVERefer to Figure 14 for the following procedures.High Fire Manifold Adjustments: 1. Disconnect wires from amplifier terminal 4 (see Figure 11,

page 4). This causes the valve to call for continuous high fire.2. Adjust the pressure regulator to obtain the desired manifold

pressure (7” w.c. maximum).3. Reconnect the wires to amplifier terminal 4.

Low Fire or Bypass Adjustments:1. Disconnect wire from amplifier terminal 8, this causes the valve

to call for continuous low fire.2. Remove cap (A), and turn adjusting screw (B) to desired low fire

adjustment. (Clockwise rotation reduces minimum flow rate.)3. Replace cap (A), and reconnect wire to amplifier terminal 8.

Figure 13: MR212 Valve Adjustments

Figure 14: M411, 511, 611 Valve Adjustments

UP DOWN

TDS Dipswitch LFS Dipswitch

Figure 12: A1014R Englarged View: DIP Switch Setting

© 2

013

Max

itrol

© 2013 Maxitrol

© 2013 Maxitrol

FIE

LD S

ERVI

CE

CH

ECK

LIST


SYM

PTO

MPO

SSIB

LE C

AU

SEFI

ELD

TES

TR

EMED

YA

.N

o ga

s flo

w.

1. M

odul

atin

g va

lve

impr

oper

ly in

stal

led.

1. A

rrow

on

side

of v

alve

sho

uld

poin

t in

dire

ctio

n of

gas

flow

.1.

Inst

all p

rope

rly.

B.

Con

tinuo

us L

ow F

ire

(ele

ctro

nics

pro

blem

).2.

Sho

rt ci

rcui

t or n

o vo

ltage

to th

e am

plifi

er.

3. O

pen

circ

uit i

n TD

114

Rem

ote

Tem

pera

ture

S

elec

tor c

ircui

t or w

iring

.

4. S

hort

circ

uit i

n TS

114,

Dis

char

ge A

ir S

enso

r ci

rcui

t or

wiri

ng.

5. A

mpl

ifier

is n

ot o

pera

ting

prop

erly.

6. In

corr

ectly

set

to e

xter

nal d

ial.

2. C

heck

for

pow

er li

ght

or 2

4VA

C a

t am

plifi

er t

erm

inal

s 7

and

8.3.

Ins

pect

for

loo

se o

r br

oken

wire

s be

twee

n am

plifi

er

term

inal

s 1

and

2, a

nd T

D11

4 te

rmin

als

1 an

d 2,

and

TD

114

term

inal

s 1

and

3.4.

Con

nect

test

res

isto

r as

des

crib

ed in

“P

relim

inar

y C

ircui

t A

naly

sis”

, pag

e 7.

Fol

low

pro

cedu

re o

utlin

ed.

5. C

heck

“Fie

ld T

est”

2, 3

and

4.

6. V

isua

lly e

xam

ine

dial

pos

ition

.

2. P

rove

the

pow

er s

ourc

e.

3. T

ight

en c

onne

ctio

ns o

r rep

lace

wiri

ng.

4. I

f m

odul

atin

g vo

ltage

s ar

e ob

tain

ed,

Che

ck T

S11

4 ci

rcui

t fo

r sh

orts

. R

epla

ce

TS11

4 if

nece

ssar

y.5.

If “F

ield

Tes

t” 2,

3, a

nd 4

che

ck o

ut a

nd m

odul

atin

g vo

ltage

s ar

e st

ill n

ot o

btai

ned,

am

plifi

er m

ay b

e as

sum

ed fa

ulty

. Rep

lace

.6.

Set

Dip

switc

h #1

to In

tegr

al.

C.

Con

tinuo

us L

ow F

ire

(val

ve p

robl

em).

7. S

hort

circ

uit o

r ope

n ci

rcui

t in

mod

ulat

or c

oil.

8. P

lung

er m

issi

ng, j

amm

ed, o

r im

prop

erly

inst

alle

d.

7. M

easu

re r

esis

tanc

e ac

ross

mod

ulat

or t

erm

inal

s w

ith

conn

ectin

g w

ires

deta

ched

.8.

Insp

ect.

Plu

nger

sho

uld

be s

moo

th,

clea

n, a

nd o

pera

te

freel

y in

sol

enoi

d sl

eeve

, see

Fig

ure

7, p

age

3. In

stal

l with

al

umin

um ti

p do

wn.

7. R

epla

ce m

odul

ator

hea

d if

not

appr

oxim

atel

y 45

-55

ohm

s fo

r M

611

Valv

e an

d 60

-80

ohm

s fo

r MR

212

Valv

e.8.

Cle

an, o

r if n

eces

sary

, rep

lace

plu

nger

.

D.

Cor

rect

Low

Fire

Err

atic

or

Puls

atin

g Fl

ame.

9.

Inco

rrec

t by-

pass

met

erin

g va

lve

adju

stm

ent.

10. E

xces

sive

neg

ativ

e bu

rner

pre

ssur

e.

9.

See

“Val

ve A

djus

tmen

ts”,

page

5.

10. C

lose

mai

n ga

s su

pply

and

mea

sure

man

ifold

pre

ssur

e

with

blo

wer

ope

ratin

g. R

eadi

ng s

houl

d be

less

than

1.

5” w

.c. n

egat

ive

pres

sure

.

9.

Adj

ust t

o pr

oper

low

fire

.10

. If r

eadi

ng is

gre

ater

than

1.5

” neg

ativ

e pr

essu

re, c

heck

for c

logg

ed fi

lters

or

othe

r inl

et a

ir re

stric

tions

. Con

sult

Max

itrol

Tec

hnic

al S

uppo

rt fo

r oth

er

solu

tions

.

F.C

ontin

uous

Hig

h Fi

re

(ele

ctro

nics

pro

blem

).11

. S

hort

circ

uit

in T

D11

4 R

emot

e Te

mpe

ratu

re S

elec

tor

circ

uit o

r wiri

ng.

12. O

pen

circ

uit i

n TS

114/

TS10

765.

Dis

char

ge o

r Inl

et A

ir S

enso

r Circ

uit o

r wiri

ng.

11. I

nspe

ct fo

r sho

rts a

t or b

etw

een

ampl

ifier

term

inal

s 1

and

2 or

TD

114

term

inal

s 1

and

3.

12. C

heck

TS

114/

TS10

765

for o

pen

inte

rnal

circ

uit.

Con

nect

te

st re

sist

or a

s de

scrib

ed in

“Pre

limin

ary

Circ

uit A

naly

sis”

, pa

ge 7

. Fol

low

pro

cedu

re o

utlin

ed.

11. C

orre

ct w

iring

if s

horts

exi

st.

12.

If m

odul

atin

g vo

ltage

s ar

e ob

tain

ed,

chec

k TS

114/

TS10

765

for

open

circ

uits

. R

epla

ce T

S11

4/TS

1076

5.

GC

ontin

uous

Hig

h Fi

re

(val

ve p

robl

em).

13.

Fore

ign

obje

ct h

oldi

ng v

alve

ope

n.14

. P

lung

er ja

mm

ed.

13. R

emov

e bo

ttom

pla

te a

nd in

spec

t val

ve a

nd s

eat.

14. I

nspe

ct. P

lung

er s

houl

d be

sm

ooth

, cle

an, a

nd o

pera

te

freel

y in

sol

enoi

d sl

eeve

, see

Fig

ure

7, p

age

3. In

stal

l with

al

umin

um ti

p do

wn.

13. C

lean

sea

t. C

lean

val

ve o

r rep

lace

if n

eces

sary

.14

. Cle

an, o

r if n

eces

sary

, rep

lace

plu

nger

.

H.

Inco

rrec

t Hig

h Fi

re.

15. I

nlet

pre

ssur

e to

o lo

w.

16.

Inco

rrec

t ou

tlet

pres

sure

adj

ustm

ent

of p

ress

ure

regu

lato

r.

15. R

ead

pres

sure

at

inle

t to

mod

ulat

ing

valv

e us

ing

a m

anom

eter

with

uni

t op

erat

ing

at h

igh

fire.

Pre

ssur

e sh

ould

be

equa

l to

the

sum

of o

utle

t pre

ssur

e se

tting

plu

s pr

essu

re d

rop

of th

e va

lve

(see

Max

itrol

Cap

acity

Cha

rt).

16. R

ead

man

ifold

pre

ssur

e us

ing

man

omet

er a

nd c

ompa

re

with

reco

mm

enda

tion

of e

quip

men

t man

ufac

ture

r.

15. I

ncre

ase

inle

t pre

ssur

e if

poss

ible

.

16. S

ee “V

alve

Adj

ustm

ents

”, pa

ge 5

.

E.

Erra

tic o

r Pul

satin

g Fl

ame

17.

Hun

ting.

18.

Err

atic

air

patte

rns

or im

prop

er T

S11

4 lo

catio

n.

19.

Wiri

ng is

run

nex

t to

hig

h vo

ltage

sw

itchi

ng c

ircui

ts

caus

ing

indu

ced

volta

ges.

20. A

mpl

ifier

not

ope

ratin

g pr

oper

ly o

r erra

tic v

olta

ge s

uppl

y.

17.

Adj

ust s

ensi

tivity

con

trol c

ount

er-c

lock

wis

e.18

. Con

nect

test

resi

stor

as

desc

ribed

in “P

relim

inar

y C

ircui

t An

alys

is”,

page

7. T

urn

TD11

4 se

lect

or d

ial s

o he

ater

goe

s th

roug

h its

ent

ire m

odul

atin

g ra

nge.

19. T

empo

raril

y w

ire e

ach

of T

D11

4, T

S11

4, a

nd M

R21

2 ex

tern

ally

and

obs

erve

hea

ter/e

quip

men

t ope

ratio

n.20

. W

ith t

est

resi

stor

con

nect

ed (

per

“Fie

ld T

est”

18)

and

TD11

4 lo

cally

con

nect

ed (p

er “F

ield

Tes

t” 19

), tu

rn T

D11

4 se

lect

or d

ial t

hrou

gh e

ntire

mod

ulat

ing

rang

e. O

bser

ve

DC

vol

tage

acr

oss

mod

ulat

or te

rmin

als.

17. A

djus

t sen

sitiv

ity c

ontro

l to

mai

ntai

n an

eve

n fla

me.

18. I

f the

flam

e is

ste

ady

thro

ugho

ut th

e en

tire

mod

ulat

ing

rang

e, th

e TS

114

mus

t be

mov

ed.

19. I

f sm

ooth

ope

ratio

n re

sults

, iso

late

affe

cted

wiri

ng fr

om s

ourc

e of

indu

ced

volta

ge.

20. I

f err

atic

or u

nsta

ble

DC

vol

tage

s ar

e ob

tain

ed th

roug

hout

the

mod

ulat

ing

rang

e,

the

ampl

ifier

may

be

assu

med

faul

ty. R

epla

ce. I

f err

atic

ope

ratio

n is

not

ed o

nly

over

a s

mal

l ran

ge o

f 2 o

r 3 v

olts

, the

vol

tage

sou

rce

may

con

tain

sur

ges.

Con

sult

Max

itrol

Tec

hnic

al S

uppo

rt.

I.In

corr

ect D

isch

arge

Air

Tem

pera

ture

.21

. Inl

et A

ir S

enso

r is

used

.

22. I

ncor

rect

Wiri

ng.

23. S

yste

m o

ut o

f cal

ibra

tion.

24. I

mpr

oper

TS

114

loca

tion.

25. R

oom

Ove

rrid

e Th

erm

osta

t circ

uit c

lose

d.

21. I

nlet

Air

Sen

sor c

hang

es 1

° for e

ach

3.5°

, 5°,

or 8

° out

side

te

mpe

ratu

re c

hang

e fro

m 6

0° (p

rede

term

ined

– tu

rndo

wn

varie

s w

ith m

odel

use

d).

22. C

heck

“Wiri

ng D

iagr

ams”

, pag

e 4.

23. S

ense

d te

mpe

ratu

re (t

herm

omet

er n

ext t

o TS

114)

doe

s no

t cor

resp

ond

to T

D11

4 se

tting

.24

. Sen

sed

tem

pera

ture

(the

rmom

eter

nex

t to

TS11

4) d

oes

not r

epre

sent

ave

rage

dis

char

ge a

ir te

mpe

ratu

re.

25.

Rem

ove

Ove

rrid

e Th

erm

osta

t le

ad f

rom

ter

min

al 2

of

TD11

4.

21. S

ense

d te

mpe

ratu

re w

ill v

ary

from

TD

114

dial

set

tings

. Thi

s is

inte

ntio

nal.

22. C

orre

ct w

iring

as

show

n in

“Wiri

ng D

iagr

ams”

, pag

e 4.

23. C

onsu

lt M

axitr

ol T

echn

ical

Sup

port.

24. M

ove

TS11

4 to

loca

tion

whe

re a

vera

ge re

pres

enta

tive

tem

pera

ture

can

be

sens

ed.

25. T

D11

4 di

al s

ettin

g, th

en c

heck

ther

mos

tat s

ettin

g an

d/or

che

ck w

iring

for s

horts

.

J.B

urne

d ou

t Tra

nsfo

rmer

.26

. Sho

rt ci

rcui

t in

mod

ulat

or c

oil.

27. S

hort

circ

uit b

etw

een

ampl

ifier

and

mod

ulat

or v

alve

.

26. M

easu

re re

sist

ance

acr

oss

mod

ulat

or te

rmin

als

with

red

lead

wire

s di

scon

nect

ed.

27. I

nspe

ct w

iring

.

26. R

epla

ce m

odul

ator

hea

d if

less

than

40

ohm

s.

27. C

orre

ct w

iring

if s

hort

is fo

und.

K.

Dis

char

ge A

ir Te

mpe

ratu

re

too

Low

whe

n T1

15 is

O

pera

tive.

28. T

oo lo

w a

n ov

errid

e te

mpe

ratu

re s

ettin

g.29

. Bur

ner c

apac

ity m

ay b

e in

suffi

cien

t.28

. Che

ck “O

verr

ide

Tem

pera

ture

Sel

ecto

r” o

f TD

114.

29

. Che

ck fo

r hig

h fir

e (m

axim

um m

anifo

ld p

ress

ure

spec

ified

fo

r hea

ter)

.

28. R

eset

to c

orre

ct te

mpe

ratu

re.

29. I

f on

high

fire

, con

trol c

an d

o no

mor

e. H

eate

r una

ble

to fu

rnis

h ad

ditio

nal h

eat

to ra

ise

tem

pera

ture

.


PRELIMINARY CIRCUIT ANALYSIS

For ease in troubleshooting, it is advisable to wire the system as follows (this differs from the normal connection). Disconnect the Discharge Air Sensor and replace it with a 10,000 ohm, 1/2 watt test resistor (terminals 3 and 4). If inlet air sensor is being used, disconnect and replace with a jumper. On units where the Remote Temperature Selector is located a considerable distance from the heater, it may be advantageous to use the selector at the heater location or use the integral selector.

Connect a DC volt meter (capable of reading 0-24 VDC) on the Modulator or Modulator-Regulator Valve terminals. Set the temperature to the minimum dial setting. The DC voltage should read 0 volts. The DC voltage should gradually increase to at least 20 volts as you slowly rotate the dial to the maximum dial setting. If these voltages are obtained, the valve function can now be checked out.

The operation of the valve with regard to voltage is as follows: from 0 volts to approximately 5 volts, the modulating valve should be on bypass flow with the heater operating on low or minimum fire. From approximately 5 volts to 15 volts DC, the valve should be performing its modulating function, and the heater should be firing at a modulated flow rate between low and high fire, depending upon the voltage. Above approximately 15 volts DC, the valve should be delivering full flow to the heater and the unit should be on full fire. If the DC voltage is obtained on the valve terminals, but the heater does not respond as described, the problem can be isolated to the valve itself or to the gas control manifold of the heater (see “Field Service Checklist”, page 6).

In the event proper voltages are obtained, and the valve responds correctly to these DC voltages, the problem could well be in the wiring leading to the Discharge Air Sensor or the Discharge Air Sensor itself. This should be also reviewed in the Field Service Checklist.

If the proper voltages are not obtained when wired as instructed, the problem can be isolated to the electronics and this may once again be reviewed in the Field Service Checklist.

After the troubleshooting test, remove the test resistor and reconnect the Discharge Air Sensor to terminals 3 and 4. If Remote Temperature Selector has been moved or disconnected return it to its original position.

INTEGRAL TEMPERATURE DIAL LABEL

IMPORTANT: Temperature range on dial must match sensor temperature range.

The A1014R comes with the 40ºF - 80ºF label factory installed.

Following labels are shipped loose with the amplifier and can be field installed:

Label Range Matching Sensor40º-80ºF TS114F55º-90ºF TS114

90º-140ºF TS114G110º-160ºF TS114J160º-210ºF TS114C

* Label factory installed.

Installation Instructions• Locate desired label (to match sensor)• DO NOT remove existing dial label.• Make sure label surface is clean and dry.• Remove adhesive backing from desired label.• Carefully place label on top of range being replaced, lining up with the locating mark. • Set desired temperature by using adjustment pointer to point

to desired temperature.

*

series 14r installation instructions and field service checklist · 2016. 5. 4. · optional: etd-1...

Documents